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Mackinawite
A valid IMA mineral species
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About Mackinawite
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).
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.
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 Identifiers
Mindat ID:
2512
Long-form identifier:
mindat:1:1:2512:2
IMA Classification of Mackinawite
Approved
IMA Formula:
Fe2+S2-
Classification of Mackinawite
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.
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
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
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 Symbols
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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Mkw | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Mkw | The 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 Mackinawite
Metallic
Transparency:
Opaque
Colour:
Bronzy
Streak:
Black
Hardness:
2½ on Mohs scale
Hardness:
VHN15=63 - 89 kg/mm2 - Vickers
Cleavage:
Perfect
Perfect on {001}.
Perfect on {001}.
Density:
4.17 g/cm3 (Calculated)
Optical Data of Mackinawite
Anisotropism:
extreme
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 400nm | 17.7% | 25.7% |
| 420nm | 17.0% | 28.0% |
| 440nm | 16.4% | 30.2% |
| 460nm | 16.2% | 32.2% |
| 480nm | 16.1% | 34.4% |
| 500nm | 16.0% | 36.5% |
| 520nm | 16.1% | 38.4% |
| 540nm | 16.1% | 40.0% |
| 560nm | 16.3% | 41.4% |
| 580nm | 16.5% | 42.5% |
| 600nm | 16.7% | 43.3% |
| 620nm | 17.0% | 43.9% |
| 640nm | 17.2% | 44.3% |
| 660nm | 17.4% | 44.5% |
| 680nm | 17.5% | 44.6% |
| 700nm | 17.7% | 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 Mackinawite
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).
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).
Elements listed:
Common Impurities:
Co,Cu,Ni
Crystallography of Mackinawite
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 Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014518 | Mackinawite | Lennie 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 59 677-683 | ![]() | 1995 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 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 Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest 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 Mackinawite
Geological Setting of Type Material:
deeply weathered serpentinite
Synonyms of Mackinawite
Iron sulfide (in part)
Other Language Names for Mackinawite
Common Associates
Associations Based on Photo Data:
| 86 photos of Mackinawite associated with Pyrite | FeS2 |
| 82 photos of Mackinawite associated with Chalcopyrite | CuFeS2 |
| 61 photos of Mackinawite associated with Pyrrhotite | Fe1-xS |
| 44 photos of Mackinawite associated with Sphalerite | ZnS |
| 30 photos of Mackinawite associated with Cubanite | CuFe2S3 |
| 20 photos of Mackinawite associated with Galena | PbS |
| 19 photos of Mackinawite associated with Calcite | CaCO3 |
| 7 photos of Mackinawite associated with Pentlandite | (NixFey)Σ9S8 |
| 6 photos of Mackinawite associated with Arsenopyrite | FeAsS |
| 6 photos of Mackinawite associated with Cobaltpentlandite | Co9S8 |
Related Minerals - Strunz-mindat Grouping
| 2.CC. | Eliopoulosite | V7S8 |
| 2.CC. | Tilkerodeite | Pd2HgSe3 |
| 2.CC. | 'UM2007-26-S:CuFeIrNiPtRh' | (Ir,Cu,Ni,Pt,Rh,Fe)9S11 |
| 2.CC. | Proxitwelvefoldite | Pd3Ni4Te8 |
| 2.CC. | Ferrotorryweiserite | Rh5Fe10S16 |
| 2.CC. | Tamuraite | Ir5Fe10S16 |
| 2.CC. | Crowningshieldite | (Ni0.9Fe0.1)S |
| 2.CC. | Kuvaevite | Ir5Ni10S16 |
| 2.CC. | Torryweiserite | Rh5Ni10S16 |
| 2.CC.05 | Achávalite | FeSe |
| 2.CC.05 | Langisite | CoAs |
| 2.CC.05 | Sederholmite | NiSe |
| 2.CC.05 | Freboldite | CoSe |
| 2.CC.05 | Nickeline | NiAs |
| 2.CC.05 | Sobolevskite | PdBi |
| 2.CC.05 | Jaipurite | CoS |
| 2.CC.05 | Kotulskite | Pd(Te,Bi)2-x (x ≈ 0.4) |
| 2.CC.05 | Zlatogorite | NiCuSb2 |
| 2.CC.05 | Stumpflite | PtSb |
| 2.CC.05 | Sudburyite | PdSb |
| 2.CC.05 | Breithauptite | NiSb |
| 2.CC.10 | Pyrrhotite | Fe1-xS |
| 2.CC.10 | Smythite | (Fe,Ni)3+xS4 (x=0-0.3) |
| 2.CC.10 | Troilite | FeS |
| 2.CC.15 | Ruthenarsenite | (Ru,Ni)As |
| 2.CC.15 | Westerveldite | (Fe,Ni,Co)As |
| 2.CC.15 | Modderite | CoAs |
| 2.CC.15 | Minakawaite | RhSb |
| 2.CC.15 | Cherepanovite | RhAs |
| 2.CC.20 | 'UM1990-38-S:CuFeIrNiPtRh' | (Ni,Fe,Rh,Cu,Ir,Pt)S |
| 2.CC.20 | Millerite | NiS |
| 2.CC.20 | Mäkinenite | NiSe |
| 2.CC.30 | Vavřínite | Ni2SbTe2 |
| 2.CC.30 | 'Hexatestibiopanickelite' | (Pd,Ni)(Sb,Te) ? |
| 2.CC.35b | Cooperite | PtS |
| 2.CC.35a | Vysotskite | PdS |
| 2.CC.35a | Braggite | PdPt3S4 |
| 2.CC.45 | Jacutingaite | Pt2HgSe3 |
| 2.CC.50 | 'Imgreite' | NiTe (?) |
Other Information
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 Mackinawite
mindat.org URL:
https://www.mindat.org/min-2512.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Mackinawite
Reference List:
Kouvo, Olavi, Vuorelainen, Yrjo, Long, J. V. P. (1963) A tetragonal iron sulfide. American Mineralogist, 48 (5-6) 511-524
IMA (1967) International Mineralogical Association: Commission on New Minerals and Mineral Names. Mineralogical Magazine and Journal of the Mineralogical Society, 36 (277) 131-136 doi:10.1180/minmag.1967.036.277.20
Rensburg, W. C. J. van, Liebenberg, L. (1967) Mackinawite from South Africa. American Mineralogist, 52 (7-8) 1027-1035
Vaughan, David J. (1969) Mineralogical notes: Nickelian mackinawite from Vlakfontein, Transvaal. American Mineralogist, 54 (7-8) 1190-1192
Clark, Alan H. (1970) Nickelian mackinawite from Vlakfontein, Transvaal: a discussion. American Mineralogist, 55 (9-10) 1802-1806
Moh, Günter H., Amstutz, G.C., Amthauer, G., Bernhardt, H.-J., Burkart-Baumann, I., Drabek, M., Hanus, D., Klein, D., Kuhlmann, H., Kullerud, G., Lind, T., Pebler, J., Ramdohr, P., Sobott, R., Takeno, S., Wang, N. (1982) Applied Experimental Ore Petrology. Report 1980/1981. Neues Jahrbuch für Mineralogie - Abhandlungen, 144 (3). 291-342 doi:10.1127/njma/144/1982/291(Dry mackinawite synthesis)
Kerestedjian, Thomas, Bonev, Ivan K. (1991) Complex argentopentlandite-mackinawite inclusions in chalcopyrite: A solid state exolution mechanism. Bulletin of the Geological Institute - Geochemistry, Mineralogy and Petrography, 38. 23-33
Schoonen, M. A. A., Barnes, H. L. (1991) Reactions forming pyrite and marcasite from solution: II. Via FeS precursors below 100°C. Geochimica et Cosmochimica Acta, 55 (6) 1505-1514 doi:10.1016/0016-7037(91)90123-m
Krupp, Ralf E. (1994) Phase relations and phase transformations between the low-temperature iron sulfides mackinawite, greigite, and smythite. European Journal of Mineralogy, 6 (2) 265-278 doi:10.1127/ejm/6/2/0265
Lennie, 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 (397) 677-683 doi:10.1180/minmag.1995.059.397.10
Wolthers, Mariëtte, Van der Gaast, Sjierk J., Rickard, David (2003) The structure of disordered mackinawite. American Mineralogist, 88 (11) 2007-2015 doi:10.2138/am-2003-11-1245
Frankel, R. B. (2003) Biologically Induced Mineralization by Bacteria. Reviews in Mineralogy and Geochemistry, 54 (1). 95-114 doi:10.2113/0540095
Wolthers, Mariëtte; Charlet, Laurent; van Der Linde, Peter R.; Rickard, David; van Der Weijden, Cornelis H. (2005) Surface chemistry of disordered mackinawite (FeS). Geochimica et Cosmochimica Acta, 69 (14). 3469-3481 doi:10.1016/j.gca.2005.01.027
Gramp, Jonathan P., Bigham, Jerry M., Jones, F. Sandy, Tuovinen, Olli H. (2010) Formation of Fe-sulfides in cultures of sulfate-reducing bacteria. Journal of Hazardous Materials, 175. 1062-1067 doi:10.1016/j.jhazmat.2009.10.119
Kwon, Kideok D., Refson, Keith, Sposito, Garrison (2015) Transition metal incorporation into mackinawite (tetragonal FeS) American Mineralogist, 100 (7) 1509-1517 doi:10.2138/am-2015-5211ccbyncnd
Wang, Menghan, Chou, I-Ming, Lu, Wanjun, De Vivo, Benedetto (2015) Effects of CH4 and CO2 on the sulfidization of goethite and magnetite: an in situ Raman spectroscopic study in high-pressure capillary optical cells at room temperature. European Journal of Mineralogy, 27 (2) 193-201 doi:10.1127/ejm/2015/0027-2432
Agrosì, Giovanna, Tempesta, Gioacchino, Mele, Daniela, Allegretta, Ignazio, Terzano, Roberto, Shirey, Steven B., Pearson, Graham D., Nestola, Fabrizio (2017) Non-destructive, multi-method, internal analysis of multiple inclusions in a single diamond: First occurrence of mackinawite (Fe,Ni)1+xS. American Mineralogist, 102 (11) 2235-2243 doi:10.2138/am-2017-6178
Lin, Min-Yu, Chen, Yen-Hua, Lee, Jey-Jau, Sheu, Hwo-Shuenn (2018) Reaction pathways of iron-sulfide mineral formation: an in situ X-ray diffraction study. European Journal of Mineralogy, 30 (1) 77-84 doi:10.1127/ejm/2017/0029-2681
Schröder, Christian, Wan, Moli, Butler, Ian B., Tait, Alastair, Peiffer, Stefan, McCammon, Catherine A. (2020) Identification of Mackinawite and Constraints on Its Electronic Configuration Using Mössbauer Spectroscopy. Minerals, 10 (12) 1090 doi:10.3390/min10121090
Russell, Michael, Ponce, Adrian (2020) Six ‘Must-Have’ Minerals for Life’s Emergence: Olivine, Pyrrhotite, Bridgmanite, Serpentine, Fougerite and Mackinawite. Life, 10 (11) 291 doi:10.3390/life10110291
Bolney, Robert, Grosch, Mario, Winkler, Mario, van Slageren, Joris, Weigand, Wolfgang, Robl, Christian (2021) Mackinawite formation from elemental iron and sulfur. RSC Advances, 11 (51) 32464-32475 doi:10.1039/d1ra03705f
Rickard, David (2024) The composition of mackinawite. American Mineralogist, 109 (3). p.401-407. doi:10.2138/am-2023-8943
Bosi, F.; Hatert, F.; Pasero, M.; Mills, S. J. (2024) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 78. European Journal of Mineralogy, 36 (2). 361-367 doi:10.5194/ejm-36-361-2024IMA decision 4.1 on formula
Le Pape, P.; Baptiste, B.; Radtke, G.; Cabaret, D.; Aufort, J.; Brest, J.; Baya, C.; Elkaim, E.; Ona-Nguema, G.; Juillot, F.; et al. (2026) Mackinawite transformation into greigite at room temperature under anoxic and acidic conditions: a corrosion pathway? European Journal of Mineralogy, 38 (2). 135-152 doi:10.5194/ejm-38-135-2026
Localities for Mackinawite
Showing 565 localities.
Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Afghanistan | |
| Ramdohr (1972) |
Algeria | |
| Marignac (1988) |
| Ramdohr (1972) |
Angola | |
| Ramdohr (1972) |
Argentina | |
| Econ Geol (1992) +2 other references |
| Singer et al. (2008) |
| Singer et al. (2008) | |
| Singer et al. (2008) | |
| Brodtkorb (2002) |
| KOSTADINOFF +1 other reference |
| Brodtkorb (2002) |
| - (n.d.) |
| FERRACUTTI +2 other references |
| Ramdohr (1972) |
Australia | |
| Ramdohr (1972) |
| Wagga Wagga Mine Data Sheets |
| Wagga Wagga Mine Data Sheets | |
| Gilligan (1975) |
| Gilligan et al. (1993) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ashley (1975) |
| Gilligan et al. (1993) +1 other reference |
| Gilligan et al. (1995) |
| Gilligan et al. (1995) | |
| Gilligan et al. (1995) | |
| Ramdohr (1972) | |
| Gilligan et al. (1995) |
| Gilligan et al. (1992) |
| Hertzberger et al. (1978) |
| Ramdohr (1972) |
| Wagga Wagga Mine Data Sheets |
| Worner et al. (1982) |
| Teals et al. (2006) | |
| Knights |
| Sielecki (1988) |
| Sielecki (1988) | |
| Econ Geol (1984) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Bottrill et al. (2007) +1 other reference |
| Mössinger et al. (2026) |
| Nepean Nickel Deposit +2 other references |
| McQueen (1981) |
| Mock (1987) |
| Elliott et al. (1987) |
| Ostwald (1978) |
| Marston (1984) |
| Godel et al. (2012) +1 other reference |
| Bridge et al. (1979) |
| Grguric et al. (2013) |
| Ferguson (1999) +1 other reference |
Austria | |
| Meixner (1981) |
| Taucher (1998) +1 other reference |
| Pichler (2009) |
| Pichler (2009) |
| Niedermayr et al. (1995) |
| W.Tufar (1972) |
| Heider et al. (2019) |
| Paar et al. (1993) |
| Horner et al. (1997) | |
| Auer (1995) |
| Exel (1993) |
| Strasser (1989) |
| Heider et al. (2019) |
| Moser & Postl (1990) |
| Tufar (1963) |
| Vavtar (1979) |
| Vavtar (1995) |
| Vavtar (1986) |
| - (1994, July) |
| Vavtar (1979) |
| Exel (1993) |
Azerbaijan | |
| Guliyeva (2026) |
Belarus | |
| Bakhtin et al. (2017) |
Belgium | |
| Ramdohr (1972) |
Bolivia | |
| Amstutz et al. (Eds.) |
Brazil | |
| Ramdohr (1972) |
| Marchetto (1990) |
| London +2 other references |
| NetunoVillas et al. (2001) |
| NetunoVillas et al. (2001) |
| Gomes et al. (1980) |
Bulgaria | |
| Kerestedjian (1997) |
| Singer et al. (2008) |
| [MinRec 22 p.439] |
Burkina Faso | |
| Avocet Mining plc |
Canada | |
| Nixon et al. (1998) |
| Manor |
| Peatfield (n.d.) |
| Econ Geol (1986) +1 other reference |
| Good et al. (1993) |
| Scoates et al. (2017) |
| Phillips (1979) |
| - (2022) |
| Vale SA |
| Lorand (1987) |
| Sabina (2003) |
| Sabina (2003) | |
| Chamberlain et al. (1965) |
| Ramdohr (1972) |
| Kidd Operations |
| Ames et al. (2003) |
| Nelles (2014) |
| Canadian Mineralogist 27 +2 other references | |
| Springer (1989) | |
| Geoffrey Khalil Abdallah (1990) |
| Can Mineral 1984 22: 13-21 |
| MDI Number: MDI31M04SW00022 |
| 157-158. +1 other reference |
| Currie (1980) |
| Traill (1983) |
| Caglioti (2023) | |
| Watkinson et al. (1992) |
| Smith et al. (2022) |
| MDI Number: MDI52A04SE00026 | |
| Econ Geol (1993) |
| Alexandria Minerals Corp. |
| Galley et al. (2000) |
| Sabina (1974) | |
| Sabina (1974) | |
| Smith et al. (2021) +1 other reference |
| Smith (2021) | |
Chile | |
| Schira et al. (1990) |
China | |
| Ruiqi Wang (1977) +5 other references |
| Wei Du et al. (2014) |
| Rubin et al. (1988) |
| Yongrui Zhao and Yunqing Zhen (2006) |
| Yongrui Zhao and Yunqing Zhen (2006) | |
| Yongrui Zhao and Yunqing Zhen (2006) | |
| Xiaoqiang Hu et al. (2001) |
| Bai et al. (2007) |
| Han et al. (2006) |
| Zhuangzhi Qian et al. (2009) +1 other reference | |
| Jingwen Mao et al. (2007) | |
| Zhou et al. (2001) |
| Chuanjie Pu et al. (2007) |
Colombia | |
| Cifuentes +3 other references |
Costa Rica | |
| Ramdohr (1972) |
Cyprus | |
| Foose et al. (1985) |
| Constantinou (1975) +1 other reference |
Czech Republic | |
| Knésl et al. (2005, August) +1 other reference |
| Pašava et al. (2003) | |
Egypt | |
| Sharara et al. (1999) +1 other reference |
| Helmy et al. (1995) |
Ethiopia | |
| Cook et al. (2000) |
Finland | |
| tupa.gtk.fi (n.d.) |
| www.gsf.fi (2002) +1 other reference |
| Geological Survey of Finland 2008 ... +1 other reference | |
| Kojonen et al. (eds) |
| Bowell et al. (2026) |
| Eilu (2003) |
| Geological Survey of Finland 2008. ... +1 other reference |
| Mutanen (1997) +1 other reference |
| 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. ... | |
| en.gtk.fi (2007) |
| Geological Survey of Finland 2011. ... |
| Zohka (1972) +1 other reference | |
| Geological Survey of Finland 2008. ... |
| Geological Survey of Finland 2006 ... +2 other references |
| Geological Survey of Finland 2007 ... | |
| Jupperi Aarre 1997. The magnetite ... |
| Kojonen Kari 1989 (ed) |
| Peltonen et al. (2008) |
| Papunen et al. (1985) |
| Kojonen et al. (2002) | |
| Papunen (1985) |
| Peltonen et al. (1995) |
| Häkli et al. (1985) +1 other reference | |
| Geological Survey of Finland 2009. ... |
| Mancini et al. (2000) |
| Makkonen |
| Virtasalmi-Copper Database. Geological Survey of Finland (2009) |
| Hangala Leake S. 1987 The early ... |
| Ramdohr (1972) |
France | |
| R. Pierrot |
| Forestier (1964) +1 other reference |
| Pélisson (1989) |
| De Ascençao Guedes (2003) |
| De Ascençao Guedes et al. (2000) |
| Chauris (2014) |
| Chauris (2014) |
| BRGM |
| Chauris (2014) |
| Chauris (2014) |
| Chauris (2014) |
| Pierrot et al. (1973) |
| Pierrot et al. (1973) |
| Chauris (2014) |
| Pierrot et al. (1973) | |
| Pierrot et al. (1973) |
| Chauris (2014) |
| Pierrot et al. (1973) |
| Pillard F. et al. (1985) |
| Pillard F. et al. (1985) |
| R. Pierrot |
| De Ascençao Guedes et al. (2001) |
| Briggs (1975) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Queneau (n.d.) |
| R. Pierrot |
| Pierrot et al. (1974) |
| R. Pierrot |
Germany | |
| web.archive.org (2001) |
| Schwarzmeier et al. (2015) +2 other references |
| Gröbner et al. (2019) |
| |
| Ramdohr (1972) |
| Blaß et al. (2019) |
| Ramdohr (1972) |
Greece | |
| Leleu et al. (1973) |
| Voudouris (2005) | |
| Kotopoulou et al. (2022) |
Greenland | |
| Petersen et al. (1993) |
| Petersen et al. (1993) |
Guinea | |
| Augé et al. (2018) |
India | |
| Ramdohr (1972) |
| Dhana Raju (2019) |
| Changkakoti et al. (1987) |
| Vasudev et al. (1986) |
| Mishra et al. (1999) |
| Ramdohr (1972) |
| Canadian Mineralogist 40:277-309 |
| Augé et al. (2002, July) | |
| Deb et al. (1969) +2 other references |
| Mukherjee et al. (1991) |
| Deb et al. (1969) +1 other reference | |
| Baidya et al. (2018) | |
| Mukherjee et al. (1998) |
| Deb (1980) +1 other reference | |
| Deb (1980) | |
| Mukherjee et al. (1998) |
| Mineralogical Magazine 63:743-755. |
| Ramdohr (1972) |
Indonesia | |
| Marcoux et al. (1993) +2 other references |
| Ramdohr (1972) |
Ireland | |
| Ixer et al. (1990) |
Italy | |
| · Seveke (1986/1987) |
| Castello et al. (1980) |
| Antofilli et al. (1983) |
| Brigo et al. (1974) +1 other reference |
| Camarda et al. (2013) | |
| Servida et al. (2010) |
| Bedognè et al. (2006) |
| Antofilli et al. (1983) |
| Piccoli et al. (2007) |
| Piccoli et al. (2007) |
| Zucchetti (1968) +2 other references |
| Prete (1995) |
| Piccoli et al. (2007) |
| - (n.d.) |
| Piccoli et al. (2007) |
| Petrologia e Giacimentologia della serie Diorito-Kinzigitica tra la Val d'Ossola e la Val Grande (Novara) |
| Natale et al. (1976) |
| Natale et al. (1976) | |
| Piccoli et al. (2007) +2 other references |
| Piccoli et al. (2007) |
| Piccoli et al. (2007) |
| Piccoli et al. (2007) |
| Piccoli et al. (2007) |
| Garuti et al. (1986) +2 other references |
| Revello G. (1970) |
| Ara D. et al. (2013) |
| Stara et al. (1996) |
| Marini et al. (1981) +1 other reference |
| Stara et al. (1994) | |
| - (n.d.) |
| Venerandi Pirri (2002) |
| Ramdohr (1972) |
| Bortolozzi et al. (2013) |
| Exel (1987) | |
| Dini A. et al. (2013) |
| Dini A. et al. (2013) | |
| Bertolin et al. (1995) |
Ivory Coast | |
| Gouedji et al. (2014) |
Japan | |
| Zohka (1972) |
| Zohka (1972) |
| Zohka (1972) +1 other reference |
| Zohka (1972) |
| Vol.XXI +3 other references |
| Yoshihide Shiga (1983) |
| Etsuo Uchida (1986) +1 other reference |
| Zohka (1972) +1 other reference |
| Zohka (1972) |
| Zohka (1972) |
| Zohka (1972) |
| Ramdohr (1972) |
| Takechi et al. (2003) |
| Zohka (1972) |
| Zohka (1972) |
Kazakhstan | |
| KAZ Minerals |
| Ваулин (2016) |
| KAZ Minerals |
Kosovo | |
| Kołodziejczyk et al. (2012) |
Latvia | |
| Ramdohr (1972) |
Malaysia | |
| Wan Hassan (2003) |
Mauritania | |
| Sakellaris et al. (2008) |
| Kolb et al. (2016) | |
Mexico | |
| Querol +1 other reference |
| Graham et al. (1988) |
Morocco | |
| Gervilla et al. (1990) |
New Zealand | |
| Turnbull et al. (2017) |
| Gill et al. (1970) |
Nigeria | |
| www.smenet.org (2001) |
| Ramdohr (1972) |
| Mücke et al. (2015) |
Northwest Africa Meteorites | |
| Fintor et al. (2013) | |
| Wang et al. (2016) | |
Norway | |
| Folvik et al. (2015) |
| Lindahl (1979) |
| Segalstad et al. (2002) |
| Pedersen (1976) |
| Nilsen et al. (1972) |
| Nilsen et al. (1972) | |
| Cook (1996) |
| Cook (2001) |
| Geological Survey of Norway. The Ore ... |
| Pedersen (1975) |
| Bryhni (1993) |
| Nordrum (2000) |
| Tufar (1967) |
| - (2008) |
| Neumann (1985) |
| - (2005) |
| - (2019) |
| - (1997) |
| - (1997) | |
| - (2024) | |
| - (1997) | |
| - (2018) | |
| Lindahl et al. (1988) |
| Geological survey of Norway. The Ore ... |
| Nilsen (1978) |
| Dr. Günter Grundmann collection |
| - (2024) |
| Størseth (2016) |
Oman | |
| Ixer et al. (1984) |
| Ixer et al. (1984) | |
Pakistan | |
| Arif (2003) |
| Arif et al. (2007) |
Peru | |
| Freeport-McMoRan |
| Singer et al. (2008) |
| Benites et al. (2022) |
| Harlaux et al. (2023) |
Poland | |
| Mateusz Dulski et al. (2018) +1 other reference |
| Mochnacka et al. (2015) |
| Ramdohr (1972) |
| Nejbert (2008) |
| Morgan et al. (2000) | |
| Kucha (1982) +1 other reference | |
| Morgan et al. (2000) | |
Portugal | |
| Marques de Sá et al. (2010) |
| Orlando da Cruz Gaspar - O Jazigo de ... |
| Bussink (1984) | |
Red Sea | |
| Missack et al. (1989) | |
Romania | |
| Ramdohr (1972) |
| Szakáll et al. (2010) |
| Bailly et al. (1998) |
| Cook et al. (1997) +1 other reference | |
| Szakáll (2002) |
Russia | |
| Safina +7 other references |
| Melekestseva et al. (2013) | |
| Rudashevskiy N.S. et al. (2003) +1 other reference |
| Kislov +1 other reference | |
| Safina et al. (2015) |
| Ramdohr (1972) |
| Chudnenko +2 other references |
| Kolotilina et al. (2019) |
| Mekhonoshin et al. (2013) +1 other reference |
| Kolotilina et al. (2019) +1 other reference | |
| Stepanov et al. (2021) |
| Zelenski et al. (2018) |
| Sazonov et al. (2020) +1 other reference |
| Alexander V. Dedeev et al (2002) +2 other references | |
| 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 | |
| Vereshchagin et al. (2025) |
| Groshev +6 other references |
| Groshev +6 other references | |
| PEKOV et al. (2013) | |
| Yakovenchuk et al. (2003) | |
| Henderson et al. (1999) +2 other references |
| Pekov et al. (2004) | |
| Orsoev et al. (1985) | |
| ... | |
| Chashchin et al. (2018) |
| Yury L. Voytekhovsky (2008) | |
| Grokhovskaya et al. (2003) |
| Orsoev et al. (1982) +2 other references | |
| Kalinin (2021) |
| Chernyavsky et al. (2012) | |
| Abzalov et al. (1997) +1 other reference |
| Zaikov et al. (2006) |
| Boctor et al. (2002) |
| Grishaenko et al. (2007) |
| Safonov et al. (2003) |
| USGS Open File Report 2005-1252 p26 |
| Sokolova et al. (2011) |
| Антонов (2003) |
| Gillen et al. (Eds.) |
Saudi Arabia | |
| C. F. Blain (1978) |
Senegal | |
| |
Serbia | |
| Slobodan A. Radosavljević et al. (2013) | |
| Radosavljević-Mihajlović et al. (2017) | |
| Ramdohr (1972) |
| Mineco Limited |
South Africa | |
| Rensburg et al. (1967) |
| Cairncross et al. (1995) | |
| Ramdohr (1972) |
| Econ Geol (1986) |
| Manyeruke (2007) |
| Rensburg et al. (1967) |
| Du Plessis (2019) | |
| Cairncross et al. (1995) |
| Klemd +6 other references |
| Gauert et al. (2021) |
| Günther (2013) | |
| Vaughan (1969) |
| Kinloch et al. (1990) +1 other reference |
| Henderson et al. (1999) |
| Ramdohr (1972) |
| Cairncross (2004) | |
| Ramdohr (1972) |
| Ramdohr (1972) | |
| Cairncross et al. (1995) | |
South China Sea | |
| Huang K et al. (2014) | |
South Korea | |
| CHOI et al. (1985) |
Spain | |
| Tornos et al. (1998) |
| Gervilla et al. (1990) +1 other reference |
| Gooley et al. (1976) |
| Ramdohr (1972) |
| Tornos et al. (2006) |
| Ramdohr (1972) |
| Monterrubio et al. (1990) |
| Monterrubio et al. (1990) | |
| Castroviejo (1990) | |
| Doménech-Carbó et al. (2024) |
Sweden | |
| |
| Kieft et al. (1984) |
| Ramdohr (1975) |
| Zakrzewski et al. (1986) |
| Bjärnborg (2009) +1 other reference |
| Andersen (2009) |
| Burke et al. (1990) |
| NJMAh 166 |
| Dobbe et al. (1998) | |
| Ramdohr (1972) |
| |
| Jonsson (2010) |
| |
| Econ Geol (1984) | |
| Mikael Jansson () |
| Nysten (1990) |
| Juve (1974) |
| Kresten (1990) |
Switzerland | |
| Stalder et al. (1998) |
| Schwanz et al (1994) |
| Stalder et al. (1998) |
| Ansermet (2012) |
| Ansermet (2012) |
Taiwan | |
| Huang et al. (2024) | |
Tanzania | |
| Maier et al. (2010) |
Turkey | |
| Page et al. (1984) |
Uganda | |
| Ramdohr (1972) |
UK | |
| Horrell Clark (1967) +1 other reference |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ixer et al. (1997) |
| Day (1999) |
Ukraine | |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
USA | |
| - (2008) |
| Ramdohr (1972) |
| Bunch et al. (1969) +2 other references |
| Ramdohr (1972) |
| Econ Geol (1984) +1 other reference |
| Anthony et al. (1995) | |
| Ramdohr (1972) |
| www.meteoritestudies.com/piatek.htm +1 other reference |
| www.mineralsocal.org (1999) |
| U.S. Borax | |
| Dunning et al. (2005) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Roadcap et al. (2005) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| King et al. (1994) |
| Rainville et al. (1976) |
| Thompson et al. (1998) |
| Mines of the Washington D.C Area +1 other reference |
| Ramdohr (1972) |
| Heinrich et al. (2004) |
| Lee et al. (1995) |
| Good et al. (2010) |
| - (1998) +1 other reference | |
| 5th International Platinum Symposium ... +2 other references | |
| ... | |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| USGS Prof Paper 1038 +1 other reference |
| Volborth et al. (1986) |
| Criddle et al. (1985) |
| Gobla (2012) | |
| Andersen et al. (2018) |
| Ramdohr (1972) |
| London +1 other reference |
| Ramdohr (1972) |
| Ramdohr (1972) | |
| Ramdohr (1972) |
| Christopher P.Indorf et al. (v.76,p.1170) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Harvard Museum of Natural History ... |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) | |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Ramdohr (1972) |
| Dietrich (1990) |
| Dietrich (1990) |
| Dietrich (1990) | |
| Dietrich (1990) |
| Aleksandrov (2005) |
| Cannon (1975) |
| Ramdohr (1972) |
| Hausel et al. (2001) |
| Loucks (1976) | |
Vietnam | |
| Svetlitskaya et al. (2015) |
Zambia | |
| MacIntyre (2019) |
Zimbabwe | |
| Oberthür et al. (2008) |
| Oberthür et al. (2003) |
| Frei (2005) |
The Moon | |
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Hitura Mine, Nivala, North Ostrobothnia, Finland