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Fingerite

A valid IMA mineral species
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03303530017271923185126.jpg
Fingerite

Izalco Volcano, Sonsonate Department, El Salvador
02029110017752417056123.jpg
Fingerite, etc.

Izalco Volcano, Sonsonate Department, El Salvador
03303530017271923185126.jpg
Fingerite

Izalco Volcano, Sonsonate Department, El Salvador
02029110017752417056123.jpg
Fingerite, etc.

Izalco Volcano, Sonsonate Department, El Salvador
03303530017271923185126.jpg
Fingerite

Izalco Volcano, Sonsonate Department, El Salvador
02029110017752417056123.jpg
Fingerite, etc.

Izalco Volcano, Sonsonate Department, El Salvador
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About FingeriteHide

Formula:
Cu11(VO4)6O2
Colour:
black
Lustre:
Metallic
Specific Gravity:
4.776 (Calculated)
Crystal System:
Triclinic
Name:
For Dr. Larry W. Finger (1940-), Geophysical Laboratory, Carnegie Institution of Washington, for his work in the fields of mineralogy, crystal chemistry and crystal physics.
Black to dark brown grains and euhedral, stubby prismatic crystals up to 150 micrometers.


Unique IdentifiersHide

Mindat ID:
1550
Long-form identifier:
mindat:1:1:1550:5

IMA Classification of FingeriteHide

Classification of FingeriteHide

Strunz-mindat (2026):
8.BB.80

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
Dana 7th ed.:
41.11.3.1
Dana 8th ed.:
41.11.3.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : Miscellaneous
Hey's CIM Ref.:
21.1.11

21 : Vanadates (and vanadates with arsenate or phosphate)
1 : Vanadates of the alkalis and Cu

Mineral SymbolsHide

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

SymbolSourceReference for Standard
FgrIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of FingeriteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of FingeriteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Dark reddish brown
Cleavage:
None Observed
Density:
4.776 g/cm3 (Calculated)

Optical Data of FingeriteHide

Type:
Biaxial
Colour in reflected light:
medium gray
Comments:
reflectance of randomly oriented grains in blue-filtered white light in air is 21+-2%

Chemistry of FingeriteHide

Mindat Formula:
Cu11(VO4)6O2
Element Weights:
Element% weight
Cu49.204 %
O29.282 %
V21.515 %

Calculated from ideal end-member formula.
Cu
O
V
Elements listed:
Cu, O, V - search for minerals with similar chemistry

Crystallography of FingeriteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 8.15 Å, b = 8.26 Å, c = 8.04 Å
α = 107.14°, β = 91.38°, γ = 106.44°
Ratio:
a:b:c = 0.987 : 1 : 0.973
Unit Cell V:
492.64 ų (Calculated from Unit Cell)
Morphology:
Plate like and equant crystals
Twinning:
180 degree rotation about [010]

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000975FingeriteFinger L W (1985) Fingerite Cu11O2(VO4)6: a new vanadium sublimate from Izalco Volcano, El Salvador: crystal structure American Mineralogist 70 197-19919850293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.48 Å(100)
3.042 Å(80)
2.822 Å(70)
2.025 Å(70)
3.894 Å(60)
3.617 Å(60)
3.293 Å(60d)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
45b : [Other oxidized fumarolic minerals]

Type Occurrence of FingeriteHide

Type Locality:
ⓘ Izalco Volcano, Sonsonate Department, El Salvador
General Appearance of Type Material:
crystals, to 150 µm
Place of Conservation of Type Material:
Carnegie Institution, Washington, D.C.; National Museum of Natural History, Washington, D.C., USA, 160387.
Geological Setting of Type Material:
Outer sulfate zone of fumarole "Y" indicating a sublimation temperature between 100 and 200 degrees C.
Associated Minerals at Type Locality:
BannermaniteChalcanthiteChalcocyaniteEuchlorineShcherbinaite
StoiberiteThénarditeZiesite
Reference:
Hughes, John M.; Hadidiacos, C. G. (1985) Fingerite, Cu11O2(VO4)6, a new vanadium sublimate from Izalco volcano, El Salvador: descriptive mineralogy. American Mineralogist, 70 (1-2). 193-196

Synonyms of FingeriteHide

Other Language Names for FingeriteHide

Dutch:Fingeriet
German:Fingerit
Spanish:Fingerita

Common AssociatesHide

Associations Based on Photo Data:
2 photos of Fingerite associated with StoiberiteCu5(VO4)2O2
1 photo of Fingerite associated with McbirneyiteCu3(VO4)2

Related Minerals - Strunz-mindat GroupingHide

8.BB.MoabiteNiFe3+(PO4)OOrth. mmm(2/m2/m2/m) : Pnma
8.BB.TilasiteCaMg(AsO4)FMon.
8.BB.PaulgrothiteCu9Fe3+O4(PO4)4Cl3Orth. mm2 : Cmc21
8.BB.KarlditmariteCu9O4(PO4)2(SO4)2Tric. 1 : P1
8.BB.MilkovoiteCu4O(PO4)(AsO4)Orth. mmm(2/m2/m2/m) : Pnma
8.BB.XArsenowagneriteMg2(AsO4)FMon. 2/m : P21/c
8.BB.05TavoriteLiFe3+(PO4)(OH)Tric. 1 : P1
8.BB.05AmblygoniteLiAl(PO4)FTric. 1 : P1
8.BB.05MontebrasiteLiAl(PO4)(OH)Tric. 1 : P1
8.BB.10ZwieseliteFe2+2(PO4)FMon. 2/m : B2/b
8.BB.10TripliteMn2+2(PO4)FMon. 2/m : B2/b
8.BB.15'Unnamed (Sb-analogue of Auriacusite)'Fe3+Cu2+[(Sb,As)O4]O
8.BB.15JoosteiteMn2+(Mn3+,Fe3+)(PO4)OMon. 2/m : B2/b
8.BB.15HydroxylwagneriteMg2(PO4)(OH)Mon. 2/m : P21/c
8.BB.15WagneriteMg2(PO4)FMon. 2/m : P21/c
8.BB.15Stanĕkite(Mn2+,Fe2+,Mg)Fe3+(PO4)OMon. 2/m : P21/c
8.BB.15TriploiditeMn2+2(PO4)(OH)Mon. 2/m : P21/c
8.BB.15SarkiniteMn2+2(AsO4)(OH)Mon. 2/m : P21/c
8.BB.15WolfeiteFe2+2(PO4)(OH)Mon. 2/m : P21/c
8.BB.20HoltedahliteMg2(PO4)(OH)Trig. 3m : P31m
8.BB.20Satterlyite(Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6Trig. 3m(32/m) : P31m
8.BB.25AlthausiteMg4(PO4)2(OH,O)(F,◻)Orth. mmm(2/m2/m2/m) : Pnma
8.BB.30ZincoliveniteCuZn(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30AdamiteZn2(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30LibetheniteCu2(PO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30ZincolibetheniteCuZn(PO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30EveiteMn2+2(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30OliveniteCu2(AsO4)(OH)Mon. 2/m : P21/m
8.BB.30AuriacusiteFe3+Cu2+(AsO4)OOrth. mmm(2/m2/m2/m) : Pnnm
8.BB.35ParadamiteZn2(AsO4)(OH)Tric. 1 : P1
8.BB.35TarbuttiteZn2(PO4)(OH)Tric. 1 : P1
8.BB.40BarbosaliteFe2+Fe3+2(PO4)2(OH)2Mon. 2/m : P21/c
8.BB.40ScorzaliteFe2+Al2(PO4)2(OH)2Mon. 2/m : P21/c
8.BB.40LazuliteMgAl2(PO4)2(OH)2Mon. 2/m : P21/c
8.BB.40MeizhouiteFe2+V3+2(PO4)2(OH)2Mon. 2/m : P21/c
8.BB.40HentscheliteCuFe3+2(PO4)2(OH)2Mon. 2/m : P21/m
8.BB.40WilhelmkleiniteZnFe3+2(AsO4)2(OH)2Mon. 2/m : P21/m
8.BB.45DokuchaeviteCu8O2(VO4)3Cl3Tric. 1 : P1
8.BB.45TrolleiteAl4(PO4)3(OH)3Mon. 2/m : B2/b
8.BB.45YaroshevskiteCu9O2(VO4)4Cl2 Tric. 1 : P1
8.BB.50NamibiteCu(BiO)2(VO4)(OH)Tric. 1 : P1
8.BB.50Aleutite[Cu5O2](AsO4)(VO4) · (Cu,K,Pb,Rb,Cs,)ClMon. 2/m : B2/m
8.BB.52aEriclaxmaniteCu4O(AsO4)2Tric. 1 : P1
8.BB.52bKozyrevskiteCu4O(AsO4)2Orth. mmm(2/m2/m2/m) : Pnma
8.BB.55Phosphoellenbergerite(Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6Hex. 6mm : P63mc
8.BB.55PopoviteCu5O2(AsO4)2Tric. 1 : P1
8.BB.60UrusoviteCuAl(AsO4)OMon. 2/m : P21/c
8.BB.65TheoparacelsiteCu3(As2O7)(OH)2Orth. mmm(2/m2/m2/m) : Pmma
8.BB.70TuraniteCu5(VO4)2(OH)4Tric. 1 : P1
8.BB.75StoiberiteCu5(VO4)2O2Mon. 2/m : P21/c
8.BB.85AverieviteCu6(VO4)2O2Cl2Trig. 3 : P3
8.BB.90RichelliteCaFe3+2(PO4)2(OH,F)2Amor.
8.BB.90LipscombiteFe2+Fe3+2(PO4)2(OH)2Tet. 422 : P41212
8.BB.90ZinclipscombiteZnFe3+2(PO4)2(OH)2Tet. 422 : P43212

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 FingeriteHide

References for FingeriteHide

Localities for FingeriteHide

Showing 2 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.
Hide all sections | Show all sections

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.
El Salvador (TL)
 
  • Sonsonate Department
Hughes et al. (1985) +2 other references
Russia
 
  • Kamchatka Krai
    • Milkovsky District
      • Tolbachik Volcanic field
Pekov et al. (2013)
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