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Mackinawite

A valid IMA mineral species
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About MackinawiteHide

Formula:
FeS
Formerly accepted formula: (Fe,Ni)9S8; also given as (Fe,Ni)1+xS (x = 0 to 0.11).
The current formula (FeS) is from Rickard (2023) and was subsequently approved by the IMA (Newsletter 78).
Colour:
Bronzy
Lustre:
Metallic
Hardness:
2½
Specific Gravity:
4.17 (Calculated)
Crystal System:
Tetragonal
Name:
Named after the discovery locality.
Dimorph of:
May be confused with valleriite (which it was initially believed to be in the type location).

Mackinawite may form as a metastable product of sulfidation of goethite in the CH4 atmosphere but only when CO2 is added, as shown by an experiment of Wang et al. (2015); it is followed by pyrrhotite.

One of six minerals proposed to be essential for the emergence of life. Actually, one of two minerals, aside from fougèrite, to be vital in this matter due to "comprising precipitate membranes" (Russell & Ponce, 2020).

Related to buseckite, keilite and rudashevskyite, all of which are stabilised by additional essential divalent cations.


Unique IdentifiersHide

Mindat ID:
2512
Long-form identifier:
mindat:1:1:2512:2

IMA Classification of MackinawiteHide

Approved
IMA Formula:
Fe2+S2-

Classification of MackinawiteHide

2.CC.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
C : With Ni, Fe, Co, PGE, etc.
Dana 7th ed.:
2.7.2.1
2.7.2.1

2 : SULFIDES
7 : AmBnXp, with (m+n):p = 9:8
3.9.6

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
9 : Sulphides etc. of Fe

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference for Standard
MkwIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
MkwThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of MackinawiteHide

Metallic
Transparency:
Opaque
Colour:
Bronzy
Streak:
Black
Hardness:
2½ on Mohs scale
Hardness:
VHN15=63 - 89 kg/mm2 - Vickers
Cleavage:
Perfect
Perfect on {001}.
Density:
4.17 g/cm3 (Calculated)

Optical Data of MackinawiteHide

Anisotropism:
extreme
Reflectivity:
WavelengthR1 (%)R2 (%)
400nm17.7%25.7%
420nm17.0%28.0%
440nm16.4%30.2%
460nm16.2%32.2%
480nm16.1%34.4%
500nm16.0%36.5%
520nm16.1%38.4%
540nm16.1%40.0%
560nm16.3%41.4%
580nm16.5%42.5%
600nm16.7%43.3%
620nm17.0%43.9%
640nm17.2%44.3%
660nm17.4%44.5%
680nm17.5%44.6%
700nm17.7%44.6%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 44.6%.
R1 shown in black, R2 shown in red
Pleochroism:
Strong

Chemistry of MackinawiteHide

Mindat Formula:
FeS

Formerly accepted formula: (Fe,Ni)9S8; also given as (Fe,Ni)1+xS (x = 0 to 0.11).
The current formula (FeS) is from Rickard (2023) and was subsequently approved by the IMA (Newsletter 78).
Element Weights:
Element% weight
Fe63.525 %
S36.475 %

Calculated from ideal end-member formula.
Fe
S
Common Impurities:
Co,Cu,Ni

Crystallography of MackinawiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm(4/m2/m2/m) - Ditetragonal Dipyramidal
Space Group:
P4/nmm
Cell Parameters:
a = 3.67 Å, c = 5.03 Å
Ratio:
a:c = 1 : 1.371
Unit Cell V:
68 ų
Z:
2
Morphology:
As well-formed thin tabular crystals, to 1 mm; massive, fine-feathery.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014518MackinawiteLennie A R, Redfern S A T, Schofield P F, Vaughan D J (1995) Synthesis and Rietveld crystal structure refinement of mackinawite, tetragonal FeS Mineralogical Magazine 59 677-6831995synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.03 Å(100)
2.96 Å(70)
2.31 Å(90)
1.838 Å(50)
1.809 Å(80)
1.729 Å(50)
1.055 Å(40)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere>4.45
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)
13 : Hadean serpentinization
Near-surface Processes
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])
Stage 4b: Highly evolved igneous rocks>3.0
37 : Layered igneous intrusions and related PGE minerals
Stage 6: Anoxic biosphere<4.0
44 : Anoxic microbially mediated minerals (see also #44)
Stage 7: Great Oxidation Event<2.4
47i : [Terrestrial weathering of meteorites]
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere<0.6
49 : Oxic cellular biomineralization (see also #44)<0.54
Geological Setting:
Widespread in low-temperature aqueous systems. It often occurs as one of the principal constituents of acid volatile sulfides in marine sediments. Rarely in carbonaceous chondrite meteorites.

Type Occurrence of MackinawiteHide

Geological Setting of Type Material:
deeply weathered serpentinite

Synonyms of MackinawiteHide

Other Language Names for MackinawiteHide

Common AssociatesHide

Associations Based on Photo Data:
86 photos of Mackinawite associated with PyriteFeS2
82 photos of Mackinawite associated with ChalcopyriteCuFeS2
61 photos of Mackinawite associated with PyrrhotiteFe1-xS
44 photos of Mackinawite associated with SphaleriteZnS
30 photos of Mackinawite associated with CubaniteCuFe2S3
20 photos of Mackinawite associated with GalenaPbS
19 photos of Mackinawite associated with CalciteCaCO3
7 photos of Mackinawite associated with Pentlandite(NixFey)Σ9S8
6 photos of Mackinawite associated with ArsenopyriteFeAsS
6 photos of Mackinawite associated with CobaltpentlanditeCo9S8

Related Minerals - Strunz-mindat GroupingHide

2.CC.EliopoulositeV7S8Trig. 32 : P3221
2.CC.TilkerodeitePd2HgSe3Trig. 3m(32/m) : P3m1
2.CC.'UM2007-26-S:CuFeIrNiPtRh'(Ir,Cu,Ni,Pt,Rh,Fe)9S11
2.CC.Proxitwelvefoldite Pd3Ni4Te8Tet. 4/mmm(4/m2/m2/m) : P42/mnm
2.CC.FerrotorryweiseriteRh5Fe10S16Trig. 3m(32/m) : R3m
2.CC.TamuraiteIr5Fe10S16Trig. 3m(32/m) : R3m
2.CC.Crowningshieldite(Ni0.9Fe0.1)SHex. 6/mmm(6/m2/m2/m) : P63/mmc
2.CC.KuvaeviteIr5Ni10S16Trig. 3m(32/m) : R3m
2.CC.TorryweiseriteRh5Ni10S16Trig. 3m(32/m) : R3m
2.CC.05AchávaliteFeSeHex. 6/mmm(6/m2/m2/m) : P63/mmc
2.CC.05LangisiteCoAsHex. 6 : P63
2.CC.05SederholmiteNiSeHex. 6/mmm(6/m2/m2/m) : P63/mmc
2.CC.05FrebolditeCoSeHex. 6/mmm(6/m2/m2/m) : P63/mmc
2.CC.05NickelineNiAsHex. 6/mmm(6/m2/m2/m) : P63/mcm
2.CC.05SobolevskitePdBiHex.
2.CC.05JaipuriteCoSHex.
2.CC.05KotulskitePd(Te,Bi)2-x (x ≈ 0.4)Hex.
2.CC.05ZlatogoriteNiCuSb2Trig. 3m(32/m) : P31m
2.CC.05StumpflitePtSbHex. 6/mmm(6/m2/m2/m) : P63/mmc
2.CC.05SudburyitePdSbHex. 6/mmm(6/m2/m2/m) : P63/mmc
2.CC.05BreithauptiteNiSbHex. 6/mmm(6/m2/m2/m) : P63/mmc
2.CC.10PyrrhotiteFe1-xSMon.
2.CC.10Smythite(Fe,Ni)3+xS4 (x=0-0.3)Trig. 3m(32/m) : R3m
2.CC.10TroiliteFeSHex. 6/mmm(6/m2/m2/m) : P63/mmc
2.CC.15Ruthenarsenite(Ru,Ni)AsOrth. mmm(2/m2/m2/m) : Pnma
2.CC.15Westerveldite(Fe,Ni,Co)AsOrth. mmm(2/m2/m2/m)
2.CC.15ModderiteCoAsOrth. mmm(2/m2/m2/m)
2.CC.15MinakawaiteRhSbOrth. mmm(2/m2/m2/m) : Pnma
2.CC.15CherepanoviteRhAsOrth. mmm(2/m2/m2/m) : Pnma
2.CC.20'UM1990-38-S:CuFeIrNiPtRh'(Ni,Fe,Rh,Cu,Ir,Pt)S
2.CC.20MilleriteNiSTrig. 3m : R3m
2.CC.20MäkineniteNiSeTrig. 3m
2.CC.30VavříniteNi2SbTe2Hex. 6/mmm(6/m2/m2/m) : P63/mmc
2.CC.30'Hexatestibiopanickelite'(Pd,Ni)(Sb,Te) ?Hex.
2.CC.35bCooperitePtSTet. 4/mmm(4/m2/m2/m) : P42/mmc
2.CC.35aVysotskitePdSTet. 4/m : P42/m
2.CC.35aBraggitePdPt3S4Tet. 4/m : P42/m
2.CC.45JacutingaitePt2HgSe3Trig. 3m(32/m) : P3m1
2.CC.50'Imgreite'NiTe (?)Hex.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for MackinawiteHide

References for MackinawiteHide

Reference List:

Localities for MackinawiteHide

Showing 565 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Afghanistan
 
  • Kandahar
    • Kandahar District
Ramdohr (1972)
Algeria
 
  • Annaba Province
    • Annaba District
      • Edough Massif
Marignac (1988)
  • Bouïra Province
    • Sour El Ghozlane District
      • Sour El-Ghozlane
Ramdohr (1972)
Angola
 
  • Cunene Province
    • Namacunde
Ramdohr (1972)
Argentina
 
  • Jujuy Province
    • Humahuaca Department
      • El Aguilar
Econ Geol (1992) +2 other references
  • Mendoza Province
    • Las Heras Department
      • Uspallata District
        • Paramillos de Uspallata
Singer et al. (2008)
Singer et al. (2008)
Singer et al. (2008)
        • Yalguaraz Cu deposit
Brodtkorb (2002)
    • Tupungato Department
      • Santa Clara District
KOSTADINOFF +1 other reference
  • San Juan Province
    • Ullúm Department
Brodtkorb (2002)
  • San Luis Province
    • Chacabuco Department
      • Concarán
- (n.d.)
    • Coronel Pringles Department
      • Estancia Grande
FERRACUTTI +2 other references
  • Santiago del Estero Province
    • Salavina Department
Ramdohr (1972)
Australia
 
  • New South Wales
    • Bourke Co.
Ramdohr (1972)
    • Buccleuch Co.
      • Tumut district
Wagga Wagga Mine Data Sheets
Wagga Wagga Mine Data Sheets
    • Cowley Co.
      • Hancoxs Mine
Gilligan (1975)
    • Cunningham Co.
Gilligan et al. (1993)
    • Delalah Co.
Ramdohr (1972)
    • Denham Co.
Ramdohr (1972)
    • Evelyn Co.
Ramdohr (1972)
    • Harden Co.
      • Coolac
Ashley (1975)
    • Mouramba Co.
      • Nymagee
Gilligan et al. (1993) +1 other reference
    • Robinson Co.
      • Cobar
Gilligan et al. (1995)
Gilligan et al. (1995)
Gilligan et al. (1995)
Ramdohr (1972)
      • The Rookery
Gilligan et al. (1995)
    • Sandon Co.
      • Hillgrove
Gilligan et al. (1992)
    • Wallace Co.
      • Jindabyne
Hertzberger et al. (1978)
    • Wellesley Co.
      • Delegate
Ramdohr (1972)
    • Wynyard Co.
      • Tumblong
Wagga Wagga Mine Data Sheets
    • Yancowinna Co.
      • Broken Hill district
Worner et al. (1982)
Teals et al. (2006)
  • Queensland
    • City of Mount Isa
      • Hilton district
Knights
      • Mount Isa
Sielecki (1988)
Sielecki (1988)
  • South Australia
    • District Council of Orroroo Carrieton
      • Eurelia
Econ Geol (1984)
    • Pastoral Unincorporated Area
Ramdohr (1972)
    • Southern Mallee District Council
      • Pinnaroo
Ramdohr (1972)
  • Tasmania
    • West Coast municipality
      • Zeehan mining district
Bottrill et al. (2007) +1 other reference
  • Western Australia
    • City of Karratha
      • Karratha
Mössinger et al. (2026)
    • Coolgardie Shire
      • Nepean
Nepean Nickel Deposit +2 other references
      • Widgiemooltha
McQueen (1981)
    • Cue Shire
      • Cue
Mock (1987)
    • East Pilbara Shire
      • Nullagine
Elliott et al. (1987)
    • Kalgoorlie-Boulder Shire
      • Broad Arrow Goldfield
        • Bardoc
Ostwald (1978)
    • Kondinin Shire
Marston (1984)
    • Laverton Shire
      • Duketon Goldfield
        • Mulga Queen Community Area (Nurra Kurramunoo)
Godel et al. (2012) +1 other reference
    • Menzies Shire
      • Menangina Station
Bridge et al. (1979)
    • Wiluna Shire
      • Lake Way Station
Grguric et al. (2013)
    • Yalgoo Shire
      • Golden Grove Mine
Ferguson (1999) +1 other reference
Austria
 
  • Carinthia
    • Sankt Veit an der Glan District
      • Hüttenberg
Meixner (1981)
    • Spittal an der Drau District
      • Malta
        • Kölnbreinspitze - Lausnock area
          • Petereck
Taucher (1998) +1 other reference
      • Rennweg am Katschberg
Pichler (2009)
        • Pölla valley
          • Zanaischg
Pichler (2009)
    • Wolfsberg District
      • Lavamünd
Niedermayr et al. (1995)
  • Lower Austria
    • Neunkirchen District
      • Pitten
W.Tufar (1972)
  • Salzburg
    • Tamsweg District
      • Mariapfarr
Heider et al. (2019)
      • Muhr
        • Rotgülden
          • Lower Rotgülden lake
Paar et al. (1993)
Horner et al. (1997)
        • Schellgaden
          • Gold mines
Auer (1995)
    • Zell am See District
      • Bramberg am Wildkogel
        • Nasenkopf mountain
          • Leckbachgraben
Exel (1993)
      • Leogang
        • Hütten
          • Schwarzleograben
            • Vogel Alp
Strasser (1989)
  • Styria
    • Liezen District
      • Schladming
        • Obertalbach valley
Heider et al. (2019)
    • Voitsberg District
      • Krems
Moser & Postl (1990)
    • Weiz District
      • Birkfeld
        • Waldbach
Tufar (1963)
  • Tyrol
    • Imst District
      • Silz
        • Wörgetal
Vavtar (1979)
    • Innsbruck-Land District
      • Axams
Vavtar (1995)
      • Neustift im Stubaital
        • Habicht
Vavtar (1986)
    • Kufstein District
      • Brixlegg
- (1994, July)
    • Landeck District
      • Kaunertal
Vavtar (1979)
      • Pfunds
        • Hinterrauth
Exel (1993)
Azerbaijan
 
  • Balakan District
    • Belokan-Avar ore district
Guliyeva (2026)
Belarus
 
  • Gomel Region
    • Buda-Kashalyova District
Bakhtin et al. (2017)
Belgium
 
  • Wallonia
    • Walloon Brabant
      • Beauvechain
Ramdohr (1972)
Bolivia
 
  • La Paz
    • Inquisivi Province
      • Colquiri
Amstutz et al. (Eds.)
Brazil
 
  • Mato Grosso do Sul
    • Cassilândia
      • Cancan farm
Ramdohr (1972)
  • Minas Gerais
    • Fortaleza de Minas
Marchetto (1990)
    • Monjolos
London +2 other references
  • Pará
    • Água Azul do Norte
NetunoVillas et al. (2001)
    • Curionópolis
NetunoVillas et al. (2001)
  • São Paulo
    • Avanhandava
      • Borá
Gomes et al. (1980)
Bulgaria
 
  • Haskovo Province
    • Ivaylovgrad Municipality
      • Ivaylovgrad
Kerestedjian (1997)
  • Pazardzhik Province
    • Panagyurishte Municipality
      • Panagyurishte
Singer et al. (2008)
  • Smolyan Province
[MinRec 22 p.439]
Burkina Faso
 
  • Sahel Region
    • Soum Province
      • Nassoumbou Department
Avocet Mining plc
Canada
 
  • British Columbia
    • Liard Mining Division
Nixon et al. (1998)
    • New Westminster Mining Division
      • Hope
Manor
    • Omineca Mining Division
      • Smithers
Peatfield (n.d.)
  • Manitoba
Econ Geol (1986) +1 other reference
    • Thompson Nickel Belt
Good et al. (1993)
      • Moab-Setting Lakes area
Scoates et al. (2017)
      • Ospwagan Lake & Paint Lake area
Phillips (1979)
  • New Brunswick
    • Gloucester Co.
      • Beresford Parish
- (2022)
  • Newfoundland and Labrador
    • Labrador
      • Voisey's Bay
Vale SA
    • Newfoundland
      • Bay of Islands
Lorand (1987)
      • Notre Dame Bay
        • Springdale peninsula
Sabina (2003)
Sabina (2003)
  • Nunavut
    • Coppermine River area
Chamberlain et al. (1965)
  • Ontario
    • Chatham-Kent
Ramdohr (1972)
    • Cochrane District
      • Timmins
        • Kidd Township
Kidd Operations
    • Greater Sudbury
      • Blezard Township
Ames et al. (2003)
      • Levack Township
Nelles (2014)
Canadian Mineralogist 27 +2 other references
Springer (1989)
    • Kenora District
      • GTP Block 7 Township
Geoffrey Khalil Abdallah (1990)
      • Kapkichi Lake Area
Can Mineral 1984 22: 13-21
    • Nipissing District
      • Strathy Township
MDI Number: MDI31M04SW00022
    • Sudbury District
157-158. +1 other reference
    • Thunder Bay District
Currie (1980)
      • Crooks Township
Traill (1983)
Caglioti (2023)
      • O'Neill Township
Watkinson et al. (1992)
      • Pardee Township
Smith et al. (2022)
MDI Number: MDI52A04SE00026
    • Timiskaming District
      • Boston Township
Econ Geol (1993)
  • Québec
    • Abitibi-Témiscamingue
      • La Vallée-de-l'Or RCM
        • Val d'Or
Alexandria Minerals Corp.
      • Rouyn-Noranda TE
Galley et al. (2000)
Sabina (1974)
Sabina (1974)
    • Côte-Nord
      • Sept-Rivières RCM
Smith et al. (2021) +1 other reference
Smith (2021)
Chile
 
  • Araucanía
    • Cautín Province
Schira et al. (1990)
China
 
  • Gansu
    • Jinchang
      • Jinchuan District
Ruiqi Wang (1977) +5 other references
  • Qinghai
    • Haixi Mongol and Tibetan Autonomous Prefecture
      • Golmud City (Ge'ermu Co.)
        • Wutumeiren
Wei Du et al. (2014)
  • Shaanxi
    • Hanzhong
      • Ningqiang County
Rubin et al. (1988)
  • Shanxi
    • Yuncheng
      • Yuanqu Co.
        • Zhongtiaoshan ore field
Yongrui Zhao and Yunqing Zhen (2006)
Yongrui Zhao and Yunqing Zhen (2006)
Yongrui Zhao and Yunqing Zhen (2006)
  • Sichuan
    • Garzê Autonomous Prefecture (Ganzi Autonomous Prefecture)
      • Danba Co.
        • Yangliuping Cu-Ni-PGE ore field
Xiaoqiang Hu et al. (2001)
  • Tibet
    • Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture)
      • Qusum Co. (Qusong Co.)
Bai et al. (2007)
  • Xinjiang
    • Hami Prefecture (Kumul Prefecture; Qumul Prefecture)
      • Yizhou District
        • Huangshan-Jing'erquan ore belt
Han et al. (2006)
Zhuangzhi Qian et al. (2009) +1 other reference
Jingwen Mao et al. (2007)
    • Ili Kazakh Autonomous Prefecture
      • Tacheng Prefecture (Tarbaghatay Prefecture)
        • Tuoli Co. (Toli Co.)
          • Sartohay (Sartokay; Sartuohai; Saertuohai)
Zhou et al. (2001)
  • Yunnan
    • Honghe
      • Jinping County
Chuanjie Pu et al. (2007)
Colombia
 
  • Boyacá Department
    • Paipa
Cifuentes +3 other references
Costa Rica
 
  • Heredia Province
    • San Pablo Canton
Ramdohr (1972)
Cyprus
 
  • Limassol District
    • Limassol Forest Complex
Foose et al. (1985)
  • Nicosia District
    • Skouriotissa
Constantinou (1975) +1 other reference
Czech Republic
 
  • Vysočina Region
    • Havlíčkův Brod District
      • Krucemburk
Knésl et al. (2005, August) +1 other reference
Pašava et al. (2003)
Egypt
 
  • Red Sea Governorate
Sharara et al. (1999) +1 other reference
    • Wadi Allaqi District
      • Wadi Haimur
Helmy et al. (1995)
Ethiopia
 
  • Oromia Region
    • Megado
Cook et al. (2000)
Finland
 
  • Kainuu
    • Suomussalmi
tupa.gtk.fi (n.d.)
  • Lapland
    • Kittilä
www.gsf.fi (2002) +1 other reference
Geological Survey of Finland 2008 ... +1 other reference
    • Koillismaa Complex
Kojonen et al. (eds)
    • Kolari
Bowell et al. (2026)
    • Rovaniemi
Eilu (2003)
    • Sodankylä
Geological Survey of Finland 2008. ... +1 other reference
      • Kevitsansarvi (Keivitsansarvi)
Mutanen (1997) +1 other reference
  • North Karelia
Hytönen (1999)
Kojonen et al. (1991)
Stein et al. (1998)
Kojonen
Geological Survey of Finland 2008. Pampalo (Ward) +2 other references
Geological Survey of Finland 2008. ...
    • Joensuu
en.gtk.fi (2007)
    • Outokumpu
Geological Survey of Finland 2011. ...
Zohka (1972) +1 other reference
  • North Ostrobothnia
    • Kuusamo
Geological Survey of Finland 2008. ...
    • Nivala
Geological Survey of Finland 2006 ... +2 other references
Geological Survey of Finland 2007 ...
    • Taivalkoski
Jupperi Aarre 1997. The magnetite ...
    • Ylivieska
Kojonen Kari 1989 (ed)
  • North Savo
    • Kaavi
Peltonen et al. (2008)
    • Leppävirta
Papunen et al. (1985)
Kojonen et al. (2002)
  • Pirkanmaa
    • Akaa
Papunen (1985)
    • Sastamala
      • Vammala
Peltonen et al. (1995)
Häkli et al. (1985) +1 other reference
    • Ylöjärvi
Geological Survey of Finland 2009. ...
  • South Ostrobothnia
    • Seinäjoki-Lapua
Mancini et al. (2000)
  • South Savo
    • Joroinen
Makkonen
    • Pieksämäki
Virtasalmi-Copper Database. Geological Survey of Finland (2009)
  • Southwest Finland
    • Pargas
Hangala Leake S. 1987 The early ...
  • Uusimaa
    • Porvoo
      • Bjurböle
Ramdohr (1972)
France
 
  • Auvergne-Rhône-Alpes
    • Cantal
      • Saint-Flour
        • Laurie
          • Anliac
R. Pierrot
    • Haute-Loire
      • Brioude
        • Lubilhac
Forestier (1964) +1 other reference
        • Vieille-Brioude
Pélisson (1989)
    • Rhône
      • Villefranche-sur-Saône
        • Chessy
De Ascençao Guedes (2003)
    • Savoie
De Ascençao Guedes et al. (2000)
  • Brittany
    • Côtes-d'Armor
      • Lannion
        • Lannion
          • Buhulien
Chauris (2014)
        • Perros-Guirec
Chauris (2014)
        • Plestin-les-Grèves
BRGM
      • Saint-Brieuc
        • Merléac
Chauris (2014)
        • Saint-Gildas
Chauris (2014)
    • Finistère
      • Brest
        • Plouarzel
Chauris (2014)
      • Châteaulin
        • Bolazec
Pierrot et al. (1973)
        • Coray
Pierrot et al. (1973)
        • Crozon
Chauris (2014)
Pierrot et al. (1973)
          • Postolonnec
Pierrot et al. (1973)
      • Morlaix
        • Guimaëc
Chauris (2014)
        • Plounévez-Lochrist
Pierrot et al. (1973)
    • Ille-et-Vilaine
      • Fougères-Vitré
        • Luitré
Pillard F. et al. (1985)
      • Rennes
Pillard F. et al. (1985)
    • Morbihan
      • Pontivy
        • Guern
R. Pierrot
        • Le Roc Saint-André
De Ascençao Guedes et al. (2001)
  • New Caledonia
    • Northern Province
      • Ouégoa
Briggs (1975)
  • Normandy
    • Orne
      • Mortagne-au-Perche
        • L'Aigle
Ramdohr (1972)
  • Nouvelle-Aquitaine
    • Charente
      • Angoulême
        • Saint-Séverin
Ramdohr (1972)
  • Occitanie
    • Haute-Garonne
      • Saint-Gaudens
        • Ausson
Ramdohr (1972)
    • Tarn
      • Castres
        • Fontrieu
Queneau (n.d.)
  • Provence-Alpes-Côte d'Azur
    • Alpes-Maritimes
      • Nice Arrondissement
        • Saint-Etienne-de-Tinée
R. Pierrot
        • Tende
Pierrot et al. (1974)
    • Hautes-Alpes
      • Briançon
        • Villar-d'Arêne
R. Pierrot
Germany
 
  • Bavaria
    • Upper Palatinate
      • Neustadt an der Waldnaab District
        • Waidhaus
          • Hagendorf
web.archive.org (2001)
        • Windischeschenbach
          • Oberbaumühle
Schwarzmeier et al. (2015) +2 other references
  • Lower Saxony
    • Goslar District
      • Bad Harzburg
        • Radau valley
Gröbner et al. (2019)
      • Goslar
        • Rammelsberg
  • North Rhine-Westphalia
    • Münster
      • Borken
        • Velen
Ramdohr (1972)
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Vordereifel
Blaß et al. (2019)
  • Schleswig-Holstein
    • Kiel
Ramdohr (1972)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
Leleu et al. (1973)
Voudouris (2005)
  • South Aegean
    • Milos
      • Milos Island
Kotopoulou et al. (2022)
Greenland
 
  • Sermersooq
    • Arsuk Fjord
      • Ivigtut stock
Petersen et al. (1993)
    • Nuuk
Petersen et al. (1993)
Guinea
 
  • Kindia Region
Augé et al. (2018)
India
 
  • Himachal Pradesh
    • Kangra District
Ramdohr (1972)
  • Jharkhand
    • East Singhbhum District
      • Jamshedpur (Tatanagar)
Dhana Raju (2019)
      • Mosaboni
Changkakoti et al. (1987)
  • Karnataka
    • Kolar District
      • Kolar
Vasudev et al. (1986)
      • Kolar Gold Fields
        • Central Schist Belt
Mishra et al. (1999)
  • Kerala
    • Malappuram district
Ramdohr (1972)
  • Odisha
    • Keonjhar District
Canadian Mineralogist 40:277-309
Augé et al. (2002, July)
  • Rajasthan
    • Jaipur district
      • Sikar District
        • Khetri
Deb et al. (1969) +2 other references
    • Jhunjhunu District
Mukherjee et al. (1991)
Deb et al. (1969) +1 other reference
Baidya et al. (2018)
    • Jodhpur Division
      • Sirohi District
Mukherjee et al. (1998)
Deb (1980) +1 other reference
Deb (1980)
    • Udaipur Division
      • Rajsamand District
Mukherjee et al. (1998)
  • Tamil Nadu
    • Thiruvannaamalai district
Mineralogical Magazine 63:743-755.
  • West Bengal
    • Purulia District
Ramdohr (1972)
Indonesia
 
  • Banten Province
    • Cikotok Gold District
Marcoux et al. (1993) +2 other references
  • West Java Province
    • Bandung Regency
Ramdohr (1972)
Ireland
 
  • Leinster
    • Wicklow County
      • Croghan Kinshela Mountain
        • Gold Mines River
Ixer et al. (1990)
Italy
 
  • Aosta Valley
    • Brusson
· Seveke (1986/1987)
    • Saint-Marcel
Castello et al. (1980)
  • Liguria
    • Genoa
      • Borzonasca
Antofilli et al. (1983)
      • Ne
        • Reppia
Brigo et al. (1974) +1 other reference
Camarda et al. (2013)
  • Lombardy
    • Bergamo Province
      • Gromo
Servida et al. (2010)
    • Sondrio Province
      • Valfurva
        • Cedec Valley
Bedognè et al. (2006)
  • Piedmont
    • Alessandria Province
      • Molare
Antofilli et al. (1983)
      • Voltaggio
Piccoli et al. (2007)
    • Biella Province
      • Portula
Piccoli et al. (2007)
    • Cuneo Province
      • Casteldelfino
Zucchetti (1968) +2 other references
    • Metropolitan City of Turin
      • Balangero
Prete (1995)
      • Prali
Piccoli et al. (2007)
      • Traversella
- (n.d.)
    • Verbano-Cusio-Ossola Province
      • Ornavasso
Piccoli et al. (2007)
      • Premosello-Chiovenda
Petrologia e Giacimentologia della serie Diorito-Kinzigitica tra la Val d'Ossola e la Val Grande (Novara)
      • Valstrona
        • Campello Monti
Natale et al. (1976)
Natale et al. (1976)
    • Vercelli Province
      • Cravagliana
Piccoli et al. (2007) +2 other references
      • Quarona
Piccoli et al. (2007)
      • Rimella
Piccoli et al. (2007)
      • Scopello
Piccoli et al. (2007)
      • Varallo Sesia
Piccoli et al. (2007)
      • Vocca
Garuti et al. (1986) +2 other references
  • Sardinia
    • Nuoro Province
      • Gadoni
Revello G. (1970)
    • Sassari Province
      • Sassari
Ara D. et al. (2013)
    • South Sardinia Province
      • Domusnovas
Stara et al. (1996)
      • Fluminimaggiore
Marini et al. (1981) +1 other reference
Stara et al. (1994)
      • Guspini
- (n.d.)
      • Villaputzu
Venerandi Pirri (2002)
  • Sicily
    • Metropolitan City of Messina
      • Messina
        • Upper Camaro Valley
Ramdohr (1972)
  • Trentino-Alto Adige/Südtirol
    • Trento Province
      • Roncegno Terme
Bortolozzi et al. (2013)
Exel (1987)
  • Tuscany
    • Livorno Province
      • Campiglia Marittima
Dini A. et al. (2013)
Dini A. et al. (2013)
  • Veneto
Bertolin et al. (1995)
Ivory Coast
 
  • Montagnes
    • Tonkpi
      • Biankouma Department
Gouedji et al. (2014)
Japan
 
  • Ehime Prefecture
    • Niihama City
      • Besshi
        • Besshi mine (Bessi mine)
Zohka (1972)
  • Fukushima Prefecture
    • Iwaki City
Zohka (1972)
  • Gifu Prefecture
    • Hida City
      • Kamioka Mine
Zohka (1972) +1 other reference
  • Hiroshima Prefecture
Zohka (1972)
  • Hokkaidō Prefecture
    • Kamikawa Subprefecture
      • Shimokawa
Vol.XXI +3 other references
  • Iwate Prefecture
    • Kamaishi City
Yoshihide Shiga (1983)
      • Kamaishi mine
Etsuo Uchida (1986) +1 other reference
    • Oshu City
      • Esashi ward
Zohka (1972) +1 other reference
    • Tono City
Zohka (1972)
  • Kyoto Prefecture
    • Fukuchiyama City
      • Kohmori ultrabasic mass
Zohka (1972)
  • Miyazaki Prefecture
    • Nishiusuki District
      • Hinokage
Zohka (1972)
  • Niigata Prefecture
    • Niigata City
Ramdohr (1972)
  • Okayama Prefecture
    • Takahashi City
      • Bitchū
        • Fuka
Takechi et al. (2003)
  • Shimane Prefecture
    • Masuda City
Zohka (1972)
  • Yamaguchi Prefecture
    • Iwakuni City
Zohka (1972)
Kazakhstan
 
  • Abai Region
    • Ayagoz District
      • Aqtoghay
KAZ Minerals
  • East Kazakhstan Region
    • Ridder
Ваулин (2016)
  • Pavlodar Region
    • Ekibastuz
KAZ Minerals
Kosovo
 
  • Mitrovica District
    • Mitrovica
      • Trepça complex
Kołodziejczyk et al. (2012)
Latvia
 
  • Zemgale Region
    • Jēkabpils Municipality
      • Leimaņi Parish
Ramdohr (1972)
Malaysia
 
  • Kedah
    • Langkawi District
      • Langkawi Island
Wan Hassan (2003)
Mauritania
 
  • Inchiri Region
    • Akjoujt (Akjout; Fort Repoux)
Sakellaris et al. (2008)
Kolb et al. (2016)
Mexico
 
  • Chihuahua
    • Saucillo Municipality
      • Naica
Querol +1 other reference
  • Zacatecas
    • Tepechitlán
Graham et al. (1988)
Morocco
 
  • Tanger-Tetouan-Al Hoceima Region
    • Chefchaouen Province
      • Beni Bousera massif
Gervilla et al. (1990)
New Zealand
 
  • Tasman Region
    • Pikikiruna Range
Turnbull et al. (2017)
    • Pokororo
Gill et al. (1970)
Nigeria
 
  • Kano
    • Doguwa
www.smenet.org (2001)
  • Niger
    • Benue River
Ramdohr (1972)
  • Zamfara
    • Maru
Mücke et al. (2015)
Northwest Africa Meteorites
 
Fintor et al. (2013)
Wang et al. (2016)
Norway
 
  • Akershus
    • Eidsvoll
      • Minnesund
Folvik et al. (2015)
    • Nannestad
      • Elsjø Mining Field
        • Engelstadvangen
Lindahl (1979)
  • Buskerud
    • Drammen
      • Konnerud
Segalstad et al. (2002)
    • Modum
      • Åmot
Pedersen (1976)
  • Innlandet
    • Tynset
      • Kvikne Mines
Nilsen et al. (1972)
Nilsen et al. (1972)
  • Nordland
    • Fauske
      • Sulitjelma
Cook (1996)
    • Rana
      • Mofjellet
Cook (2001)
    • Vefsn
      • Husvika
Geological Survey of Norway. The Ore ...
  • Rogaland
    • Lund
Pedersen (1975)
    • Sauda
Bryhni (1993)
  • Telemark
    • Kragerø
      • Valberg
Nordrum (2000)
  • Troms og Finnmark
    • Bardu
Tufar (1967)
    • Karasjok
- (2008)
    • Kautokeino
Neumann (1985)
    • Kvæfjord
- (2005)
    • Kvænangen
      • Burfjorddalen
- (2019)
    • Nordreisa
      • Vaddas-Rieppe ore field
- (1997)
- (1997)
- (2024)
- (1997)
- (2018)
    • Porsanger
Lindahl et al. (1988)
  • Trøndelag
    • Holtålen
      • Ålen
Geological survey of Norway. The Ore ...
    • Midtre Gauldal
Nilsen (1978)
    • Røros
      • Røros copper mines
        • Storwartz mining field
Dr. Günter Grundmann collection
    • Røyrvik
- (2024)
    • Trondheim
      • Bymarka
Størseth (2016)
Oman
 
  • Al Batinah North Governorate
    • Sohar
Ixer et al. (1984)
Ixer et al. (1984)
Pakistan
 
  • Khyber Pakhtunkhwa Province
    • Shangla District
Arif (2003)
    • Swat District
Arif et al. (2007)
Peru
 
  • Arequipa
    • Arequipa Province
      • Yarabamba District
Freeport-McMoRan
  • Cajamarca
    • Celendín Province
      • Quisquimayoc
Singer et al. (2008)
  • Pasco
    • Daniel Alcides Carrión Province
Benites et al. (2022)
  • Puno
    • Melgar Province
Harlaux et al. (2023)
Poland
 
  • Lower Silesian Voivodeship
    • Dzierżoniów County
      • Piława Górna
Mateusz Dulski et al. (2018) +1 other reference
    • Karkonosze County
      • Gmina Stara Kamienica
Mochnacka et al. (2015)
  • Masovian Voivodeship
    • Pułtusk County
Ramdohr (1972)
  • Podlaskie Voivodeship
    • Suwałki County
Nejbert (2008)
Morgan et al. (2000)
Kucha (1982) +1 other reference
Morgan et al. (2000)
Portugal
 
  • Aveiro
    • Albergaria-a-Velha
      • Branca
Marques de Sá et al. (2010)
  • Beja
    • Barrancos
      • Barrancos
Orlando da Cruz Gaspar - O Jazigo de ...
Bussink (1984)
Red Sea
 
Missack et al. (1989)
Romania
 
  • Cluj County
    • Mociu
Ramdohr (1972)
  • Harghita County
    • Ditrău Complex
Szakáll et al. (2010)
  • Maramureș County
Bailly et al. (1998)
Cook et al. (1997) +1 other reference
    • Groșii Țibleșului
Szakáll (2002)
Russia
 
  • Bashkortostan
    • Baymaksky District
Safina +7 other references
Melekestseva et al. (2013)
  • Buryatia
    • Severo-Baykalsky District
      • Dovyren Highlands
Rudashevskiy N.S. et al. (2003) +1 other reference
Kislov +1 other reference
  • Chelyabinsk Oblast
    • Kaslinsky District
      • Kasli
Safina et al. (2015)
    • Kunashaksky District
Ramdohr (1972)
    • Vishnevye Mountains
Chudnenko +2 other references
  • Irkutsk Oblast
Kolotilina et al. (2019)
    • Uda–Biryusa district
Mekhonoshin et al. (2013) +1 other reference
Kolotilina et al. (2019) +1 other reference
  • Kamchatka Krai
    • Koryak Okrug
      • Tigilsky district
Stepanov et al. (2021)
    • Milkovsky District
      • Tolbachik Volcanic field
Zelenski et al. (2018)
  • Krasnoyarsk Krai
    • Enisei Range (Yenisei Ridge; Enisei Ridge)
Sazonov et al. (2020) +1 other reference
Alexander V. Dedeev et al (2002) +2 other references
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
Genkin et al. (1986) +1 other reference
Sluzhenikin et al. (2015)
Anthony et al. (1990)
Spiridonov et al. (2011)
Am Min 66:638-639 +3 other references
    • Taymyrsky Dolgano-Nenetsky District
      • Kureika river
Vereshchagin et al. (2025)
  • Murmansk Oblast
    • Fedorovo-Pansky massif (Pana layered complex)
Groshev +6 other references
Groshev +6 other references
PEKOV et al. (2013)
Yakovenchuk et al. (2003)
    • Kovdorsky District
Henderson et al. (1999) +2 other references
Pekov et al. (2004)
Orsoev et al. (1985)
...
    • Monche tundra intrusion
Chashchin et al. (2018)
Yury L. Voytekhovsky (2008)
      • Sopcha Massif
Grokhovskaya et al. (2003)
Orsoev et al. (1982) +2 other references
    • Northern Karelia
      • Salla-Kuolajarvi belt
Kalinin (2021)
Chernyavsky et al. (2012)
    • Pechengsky District
Abzalov et al. (1997) +1 other reference
  • Orenburg Oblast
    • Gaysky District
Zaikov et al. (2006)
    • Severny District
Boctor et al. (2002)
  • Republic of Karelia
    • Burakovskii Layered Complex
Grishaenko et al. (2007)
    • Loukhsky District
Safonov et al. (2003)
  • Sakha
    • Aldan
USGS Open File Report 2005-1252 p26
    • Mirninsky District
      • Daldyn
Sokolova et al. (2011)
  • Sverdlovsk Oblast
    • Asbest
Антонов (2003)
  • Voronezh Oblast
Gillen et al. (Eds.)
Saudi Arabia
 
  • Najran Region
C. F. Blain (1978)
Senegal
 
  • Kédougou Region
    • Saraya
Serbia
 
Slobodan A. Radosavljević et al. (2013)
Radosavljević-Mihajlović et al. (2017)
  • Central Serbia
    • Moravica District
      • Čačak
        • Jelica
Ramdohr (1972)
      • Gornji Milanovac
Mineco Limited
South Africa
 
  • Eastern Cape
    • Alfred Nzo District Municipality
      • Umzimvubu Local Municipality
Rensburg et al. (1967)
Cairncross et al. (1995)
  • Gauteng
    • City of Ekurhuleni Metropolitan Municipality
      • Benoni
Ramdohr (1972)
    • West Rand District Municipality
Econ Geol (1986)
  • Limpopo
    • Capricorn District Municipality
      • Blouberg Local Municipality
Manyeruke (2007)
    • Mopani District Municipality
      • Ba-Phalaborwa Local Municipality
        • Phalaborwa
Rensburg et al. (1967)
Du Plessis (2019)
    • Sekhukhune District Municipality
      • Fetakgomo Tubatse Local Municipality
Cairncross et al. (1995)
    • Waterberg District Municipality
      • Mogalakwena Local Municipality
        • Mokopane
          • Mogalakwena Mine
Klemd +6 other references
  • Mpumalanga
    • Gert Sibande District Municipality
      • Chief Albert Luthuli Local Municipality
        • Waterval
          • Uitkomst Complex
Gauert et al. (2021)
Günther (2013)
  • North West
    • Bojanala Platinum District Municipality
      • Moses Kotane Local Municipality
Vaughan (1969)
      • Rustenburg Local Municipality
        • Rustenburg
          • Rustenburg Town & Townlands Farm
Kinloch et al. (1990) +1 other reference
  • Northern Cape
    • Frances Baard District Municipality
      • Dikgatlong Local Municipality
        • Windsorton
Henderson et al. (1999)
    • Namakwa District Municipality
      • Karoo Hoogland Local Municipality
        • Fraserburg
Ramdohr (1972)
Cairncross (2004)
  • Western Cape
    • Central Karoo District Municipality
      • Beaufort West Local Municipality
        • Beaufort West
Ramdohr (1972)
Ramdohr (1972)
Cairncross et al. (1995)
South China Sea
 
Huang K et al. (2014)
South Korea
 
  • Ulsan
    • Buk District
CHOI et al. (1985)
Spain
 
  • Andalusia
    • Huelva
      • Alosno
        • Tharsis
          • Tharsis Mines
Tornos et al. (1998)
    • Málaga
      • Ronda Massif
Gervilla et al. (1990) +1 other reference
  • Aragon
    • Huesca
      • Isábena
        • Roda de Isábena
Gooley et al. (1976)
      • Sena
Ramdohr (1972)
  • Extremadura
    • Badajoz
      • Monesterio
Tornos et al. (2006)
      • Olivenza
Ramdohr (1972)
  • Galicia
    • A Coruña
      • Cedeira
        • Teixidelo
Monterrubio et al. (1990)
Monterrubio et al. (1990)
Castroviejo (1990)
  • Murcia
    • Mazarrón
Doménech-Carbó et al. (2024)
Sweden
 
  • Dalarna County
    • Falun
      • Smedsbo
  • Gävleborg County
    • Sandviken
Kieft et al. (1984)
  • Jönköping County
    • Jönköping
      • Månsarp
Ramdohr (1975)
  • Örebro County
    • Askersund
      • Hammar
Zakrzewski et al. (1986)
      • Zinkgruvan
Bjärnborg (2009) +1 other reference
          • Knalla Mine
Andersen (2009)
    • Hällefors
      • Grythyttan
Burke et al. (1990)
  • Södermanland County
    • Nyköping
      • Tunaberg
NJMAh 166
Dobbe et al. (1998)
  • Uppsala County
    • Enköping
Ramdohr (1972)
  • Värmland County
    • Filipstad
      • Långban Ore District
      • Persberg ore district
        • Gåsgruvan ore field
Jonsson (2010)
        • Getön
Econ Geol (1984)
  • Västerbotten County
    • Norsjö
Mikael Jansson ()
    • Skellefteå
      • Sandfors
Nysten (1990)
    • Vilhelmina
Juve (1974)
  • Västernorrland County
    • Sundsvall
Kresten (1990)
Switzerland
 
  • Ticino
    • Locarno
      • Centovalli
        • Palagnedra
Stalder et al. (1998)
  • Valais
    • Goms
      • Binn
        • Fäld
Schwanz et al (1994)
    • Hérens
      • Evolène
        • Arolla Valley
          • La Gouille
Stalder et al. (1998)
    • Sierre
      • Anniviers
        • Ayer
Ansermet (2012)
        • Grimentz
Ansermet (2012)
Taiwan
 
Huang et al. (2024)
Tanzania
 
  • Kagera Region
    • Ngara District
Maier et al. (2010)
Turkey
 
  • Elazığ Province
    • Alacakaya District
      • Alacakaya
        • Güleman Mines
Page et al. (1984)
Uganda
 
  • Eastern Region
    • Soroti
Ramdohr (1972)
UK
 
  • England
    • Cornwall
      • Mullion
Horrell Clark (1967) +1 other reference
    • East Riding of Yorkshire
Ramdohr (1972)
    • Lancashire
      • West Lancashire
        • Wrightington
Ramdohr (1972)
  • Scotland
    • Perth and Kinross
      • Aberfeldy
Ixer et al. (1997)
  • Wales
    • Gwynedd
      • Ganllwyd
Day (1999)
Ukraine
 
  • Donetsk Oblast
    • Bakhmut Raion
      • Bakhmut
Ramdohr (1972)
    • Starobesheve Raion
      • Kalmiuske Raion
Ramdohr (1972)
    • Volnovakha Raion
Ramdohr (1972)
USA
 
  • Alaska
    • Glacier Bay Mining District
- (2008)
  • Arizona
    • Coconino County
Ramdohr (1972)
      • Meteor Crater area
Bunch et al. (1969) +2 other references
    • Navajo County
      • Holbrook
Ramdohr (1972)
    • Yavapai County
      • Eureka Mining District
        • Bagdad
Econ Geol (1984) +1 other reference
Anthony et al. (1995)
  • Arkansas
    • Cleburne County
Ramdohr (1972)
    • Jackson County
www.meteoritestudies.com/piatek.htm +1 other reference
  • California
    • Kern County
www.mineralsocal.org (1999)
U.S. Borax
    • Plumas County
      • Last Chance Mining District
        • Adams Peak
Dunning et al. (2005)
  • Colorado
    • Kiowa County
Ramdohr (1972)
    • Morgan County
Ramdohr (1972)
    • Weld County
      • Johnstown
Ramdohr (1972)
    • Yuma County
Ramdohr (1972)
  • Illinois
    • Cook County
      • Chicago
Roadcap et al. (2005)
  • Iowa
    • Linn County
Ramdohr (1972)
  • Kansas
    • Comanche County
Ramdohr (1972)
    • Franklin County
Ramdohr (1972)
    • Greeley County
Ramdohr (1972)
    • Logan County
Ramdohr (1972)
    • Phillips County
Ramdohr (1972)
    • Sheridan County
      • West Saline Township
Ramdohr (1972)
    • Sherman County
Ramdohr (1972)
    • Smith County
Ramdohr (1972)
  • Kentucky
    • Calloway County
Ramdohr (1972)
  • Maine
    • Hancock County
      • Blue Hill - Castine Mining District
        • Brooksville
King et al. (1994)
    • Knox County
      • Union
Rainville et al. (1976)
      • Warren
Thompson et al. (1998)
  • Maryland
    • Howard County
Mines of the Washington D.C Area +1 other reference
  • Michigan
    • Allegan County
      • Allegan
        • Thomas Hill
Ramdohr (1972)
    • Marquette County
      • Michigamme Township
Heinrich et al. (2004)
  • Minnesota
    • Lake County
      • Ely-Hoyt Lakes Area
Lee et al. (1995)
    • Saint Louis County
      • Ely-Hoyt Lakes Area
Good et al. (2010)
- (1998) +1 other reference
5th International Platinum Symposium ... +2 other references
...
  • Missouri
    • Cass County
Ramdohr (1972)
    • Taney County
Ramdohr (1972)
    • Warren County
Ramdohr (1972)
  • Montana
USGS Prof Paper 1038 +1 other reference
    • Stillwater County
      • Blakely Creek
Volborth et al. (1986)
      • J-M Reef (Howland Reef)
Criddle et al. (1985)
Gobla (2012)
    • Sweet Grass County
Andersen et al. (2018)
  • Nebraska
    • Custer County
Ramdohr (1972)
  • New Mexico
    • Curry County
London +1 other reference
    • De Baca County
Ramdohr (1972)
Ramdohr (1972)
    • Harding County
Ramdohr (1972)
  • North Carolina
    • Davidson County
      • Silver Hill Mining District
Christopher P.Indorf et al. (v.76,p.1170)
    • Yancey County
Ramdohr (1972)
  • Oklahoma
    • Atoka County
Ramdohr (1972)
    • Kingfisher County
Ramdohr (1972)
  • Pennsylvania
    • Lancaster County
      • Bart Township
Harvard Museum of Natural History ...
  • Texas
    • Fayette County
Ramdohr (1972)
      • La Grange
Ramdohr (1972)
    • Gaines County
Ramdohr (1972)
    • Glasscock County
Ramdohr (1972)
    • Hale County
Ramdohr (1972)
Ramdohr (1972)
    • Harrison County
Ramdohr (1972)
    • Hartley County
Ramdohr (1972)
    • Kimble County
Ramdohr (1972)
  • Virginia
    • Carroll County
      • Southern Section-Blue Ridge Province
Dietrich (1990)
    • Louisa County
      • Gold-Pyrite Belt
Dietrich (1990)
Dietrich (1990)
        • Mineral
Dietrich (1990)
  • Washington
    • Snohomish County
      • Darrington Mining District
        • Jumbo Mountain
Aleksandrov (2005)
      • Monte Cristo Mining District
Cannon (1975)
  • Wisconsin
    • Clark County
Ramdohr (1972)
  • Wyoming
    • Albany County
Hausel et al. (2001)
Loucks (1976)
Vietnam
 
  • Cao Bằng Province
    • Hòa An District
Svetlitskaya et al. (2015)
Zambia
 
  • North-Western Province
    • Solwezi District
MacIntyre (2019)
Zimbabwe
 
  • Mashonaland East
    • Goromonzi District
Oberthür et al. (2008)
  • Mashonaland West
    • Chegutu District
Oberthür et al. (2003)
  • Midlands
    • Gokwe North District
Frei (2005)
The Moon
 
 
and/or  
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