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Tarkianite

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Formula:
(Cu,Fe)(Re,Mo)4S8
Colour:
black
Lustre:
Metallic
Hardness:
5½ - 6
Specific Gravity:
7.3 (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 (Linnaeite Subgroup).
One of a very few Re-dominant minerals; compare dzhezkazganite and, e.g., rheniite, rhenium, and 'UM1986-51-S:Re'.


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Classification of TarkianiteHide

Approved
Approval Year:
2003
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

Physical Properties of TarkianiteHide

Metallic
Transparency:
Opaque
Colour:
black
Streak:
black
Hardness:
5½ - 6 on Mohs scale
Tenacity:
Brittle
Density:
7.3 g/cm3 (Calculated)

Chemical Properties of TarkianiteHide

Formula:
(Cu,Fe)(Re,Mo)4S8
IMA Formula:
(Cu,Fe)(Re,Mo)4S8

Crystallography of TarkianiteHide

Crystal System:
Isometric
Class (H-M):
4 3m - Hextetrahedral
Cell Parameters:
a = 9.563 Å
Unit Cell V:
874.55 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.53 (100)
2.88 (90)
2.39 (90)

Type Occurrence of TarkianiteHide

General Appearance of Type Material:
microscopic grains to 0.1 mm across, included in pentlandite and pyrrhotite
Associated Minerals at Type Locality:

Synonyms of TarkianiteHide

Other Language Names for TarkianiteHide

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

Relationship of Tarkianite to other SpeciesHide

Structurally related to group(s):
Linnaeite SubgroupThe Linnaeite Subgroup is a subgroup of the Thiospinel Group in the Spinel Supergroup.

Related Minerals - Nickel-Strunz GroupingHide

2.DB.05AntimonseliteSb2Se3Orth. mmm (2/m 2/m 2/m)
2.DB.05BismuthiniteBi2S3Orth. mmm (2/m 2/m 2/m)
2.DB.05GuanajuatiteBi2Se3Orth. mmm (2/m 2/m 2/m) : Pnma
2.DB.05MetastibniteSb2S3Amor.
2.DB.05PääkköneniteSb2AsS2Mon. 2/m : B2/m
2.DB.05StibniteSb2S3Orth. mmm (2/m 2/m 2/m)
2.DB.10Ottemannitebeta Sn2S3
2.DB.10SuredaitePbSnS3Orth. mmm (2/m 2/m 2/m)
2.DB.15Bowieite(Rh,Ir,Pt)2S3Orth. mmm (2/m 2/m 2/m)
2.DB.15Kashinite(Ir,Rh)2S3Orth.
2.DB.20Montbrayite(Au,Ag,Sb,Bi,Pb)23(Te,Sb,Bi,Pb)38Tric.
2.DB.25EdgariteFeNb3S6Hex. 6 2 2 : P63 2 2
2.DB.35CameroniteCu5-x(Cu,Ag)3+xTe10 (x = 0.43)Mon. 2/m : B2/b

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.

References for TarkianiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kojonen, K. K., Roberts, A. C., Isomäki, O. P., Knauf, V. V., Johanson, B., & Pakkanen, L. (2004). Tarkianite,(Cu, Fe)(Re, Mo) 4S8, a new mineral species from the Hitura mine, Nivala, Finland. The Canadian Mineralogist, 42(2), 539-544.

Internet Links for TarkianiteHide

Localities for TarkianiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Canada
 
  • Ontario
    • Thunder Bay District
K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
Finland (TL)
 
  • Northern Finland Region
    • Nivala
K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
  • Western and Inner Finland Region
    • Sastamala
      • Vammala
K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
Russia
 
  • Northern Region
    • Karelia Republic
      • Northern Karelia
        • Oulanka plutonic complex
          • Olanga River (Oulanka River)
K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
    • Murmanskaya Oblast'
      • Monche-Tundra
        • Monchegorsk
K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
USA
 
  • Montana
    • Stillwater Co.
      • Nye
Kojonen, K.K., Roberts, A.C., Isomäki, O.-P., Knauf, V.V., Johanson, Bo, Pakkanen, L. (2004): Tarkianite, (Cu,Fe)(Re,Mo)4S8, a new mineral species from the Hitura mine, Nivala, Finland. The Canadian Mineralogist, 42, 539-544
Mineral and/or Locality  
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