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⇱ Tarkianite: Mineral information, data and localities.

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Tarkianite

A valid IMA mineral species
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Formula:
(Cu,Fe)(Re,Mo)4S8
Colour:
black
Lustre:
Metallic
Hardness:
5½ - 6
Specific Gravity:
7.30 (Calculated)
Crystal System:
Isometric
Name:
For Professor Mahmud Tarkian (1941-), specialist of ore microscopy of the University of Hamburg, Germany, who first described the synthetic material and determined its structure.
A rhenium sulfide with a spinel-type structure.

One of a very few Re-dominant minerals; compare dzhezkazganite and, e.g., rheniite, rhenium, and 'UM1986-51-S:Re'.


Unique IdentifiersHide

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Mindat ID:
25693
Long-form identifier:
mindat:1:1:25693:3

IMA Classification of TarkianiteHide

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Approved
IMA Formula:
(Cu,Fe)(Re,Mo)4S8
Approval year:
2003
First published:
2004

Classification of TarkianiteHide

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2.DB.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
B : M:S = 2:3

Mineral SymbolsHide

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

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

Physical Properties of TarkianiteHide

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Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Black
Hardness:
5½ - 6 on Mohs scale
Hardness:
VHN15=561 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
7.30 g/cm3 (Calculated)

Optical Data of TarkianiteHide

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Reflectivity:
WavelengthR1 (%)
470nm38.02%
546nm38.87%
589nm39.18%
650nm39.30%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 39.30%.
Colour in reflected light:
Light gray in air, brown-gray in oil

Chemistry of TarkianiteHide

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Mindat Formula:
(Cu,Fe)(Re,Mo)4S8
Element Weights:
Element% weight
Re69.944 %
S24.089 %
Cu5.967 %

Calculated from ideal end-member formula.

Crystallography of TarkianiteHide

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Crystal System:
Isometric
Class (H-M):
43m - Hextetrahedral
Space Group:
F43m
Cell Parameters:
a = 9.563(1) Å
Unit Cell V:
874.55 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
5.531 Å(100)
2.885 Å(90)
2.389 Å(90)
1.841 Å(90)
1.690 Å(80)

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere>4.45
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)
High-? 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

Type Occurrence of TarkianiteHide

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General Appearance of Type Material:
microscopic grains to 0.1 mm across, included in pentlandite and pyrrhotite
Place of Conservation of Type Material:
Finnish Museum of Natural History, University of Helsinki, Finland.
Geological Setting of Type Material:
Sulfide and PGM deposit
Associated Minerals at Type Locality:

Synonyms of TarkianiteHide

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Other Language Names for TarkianiteHide

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German:Tarkianit
Simplified Chinese:硫铜铼矿
Traditional Chinese:硫銅錸礦

Relationship of Tarkianite to other SpeciesHide

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Other Members of Linnaeite Subgroup:
CadmoinditeCdIn2S4Iso. m3m(4/m32/m) : Fd3m
Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh3+2S4Iso. m3m(4/m32/m) : Fd3m
DaubréeliteFe2+Cr3+2S4Iso. m3m(4/m32/m) : Fd3m
GreigiteFe2+Fe3+2S4Iso. m3m(4/m32/m) : Fd3m
GrimmiteNiCo2S4Iso. m3m(4/m32/m) : Fd3m
InditeFeIn2S4Iso. m3m(4/m32/m) : Fd3m
JoegoldsteiniteMnCr2S4Iso. m3m(4/m32/m) : Fd3m
KalininiteZnCr2S4Iso. m3m(4/m32/m) : Fd3m
LinnaeiteCo2+Co3+2S4Iso. m3m(4/m32/m) : Fd3m
PolydymiteNi2+Ni3+2S4Iso. m3m(4/m32/m) : Fd3m
SiegeniteCoNi2S4Iso. m3m(4/m32/m) : Fd3m
ViolariteFe2+Ni3+2S4Iso. m3m(4/m32/m) : Fd3m
'Xingzhongite'Pb2+Ir3+2S4Iso.
Structurally related to group(s):
Linnaeite SubgroupThe Linnaeite Subgroup is a subgroup of the Thiospinel Group in the Spinel Supergroup.

Related Minerals - Strunz-mindat GroupingHide

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2.DB.StangersiteSnGeS3Mon. 2/m : P21/b
2.DB.05AntimonseliteSb2Se3Orth. mmm(2/m2/m2/m) : Pnma
2.DB.05MetastibniteSb2S3Amor.
2.DB.05PääkköneniteSb2AsS2Mon. 2/m : B2/m
2.DB.05BismuthiniteBi2S3Orth. mmm(2/m2/m2/m) : Pnma
2.DB.05StibniteSb2S3Orth. mmm(2/m2/m2/m)
2.DB.05GuanajuatiteBi2Se3Orth. mmm(2/m2/m2/m) : Pnma
2.DB.10SuredaitePbSnS3Orth. mmm(2/m2/m2/m) : Pnma
2.DB.10OttemanniteSn2S3Orth. mmm(2/m2/m2/m)
2.DB.15KashiniteIr2S3Orth. mmm(2/m2/m2/m) : Pbcn
2.DB.15BowieiteRh2S3Orth. mmm(2/m2/m2/m) : Pbcn
2.DB.20Montbrayite(Au,Ag,Sb,Bi,Pb)23(Te,Sb,Bi,Pb)38Tric. 1 : P1
2.DB.25EdgariteFeNb3S6Hex. 6 : P63
2.DB.35CameroniteCu5-x(Cu,Ag)3+xTe10 (x = 0.43)Mon. 2/m : B2/b
2.DB.40'Schreibersite (of Shephard)'Cr2S3

Other InformationHide

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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 TarkianiteHide

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mindat.org URL:
https://www.mindat.org/min-25693.html
Please feel free to link to this page.

References for TarkianiteHide

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Reference List:

Localities for TarkianiteHide

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Showing 11 localities.

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

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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.
Austria
  • Salzburg
    • Zell am See District
      • Mittersill
        • Haidbachgraben
Melcher et al. (2019) +1 other reference
Canada
  • Ontario
    • Greater Sudbury
      • Drury Township
        • Worthington area
          • Worthington Offset Dike
Warren (2013)
    • Thunder Bay District
Kojonen et al. (2004)
Finland (TL)
  • North Ostrobothnia
    • Nivala
Kojonen et al. (2004)
  • Pirkanmaa
    • Sastamala
      • Vammala
Kojonen et al. (2004)
Laos
  • Luang Namtha Province
    • Long District
Khoanta et al. (2016)
Russia
  • Irkutsk Oblast
Kolotilina et al. (2019) +1 other reference
  • Murmansk Oblast
    • Monchegorsk
      • Sopcha Massif
Kojonen et al. (2004)
  • Republic of Karelia
    • Loukhsky District
      • Oulanka plutonic complex
        • Olanga River (Oulanka River)
Kojonen et al. (2004)
Barkov et al. (2004)
USA
  • Montana
Kojonen et al. (2004)
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