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Tarkianite

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Formula:
(Cu,Fe)(Re,Mo)
 
4
S
 
8
System:IsometricColour:black
Hardness:5½ - 6
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.

Classification of Tarkianite

IMA status:Approved 2003
Strunz 8th edition ID:2/D.14-20
Nickel-Strunz 10th (pending) edition ID: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
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Type Occurrence of Tarkianite

Type Locality:Hitura Nickel Mine, Nivala, Oulun (Oulu) Lääni, Finland
General Appearance of Type Material:microscopic grains to 0.1 mm across, included in pentlandite and pyrrhotite
Associated Minerals at type locality:
ValleriiteSperrylitePyrrhotitePentlanditeMichenerite
MackinawiteIrarsiteHollingworthiteFrooditeCubanite
ChromiteChalcopyrite

Physical Properties of Tarkianite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:black
Streak:black
Hardness (Mohs):5½ - 6
Tenacity:Brittle
Density (calculated):7.3 g/cm3

Crystallography of Tarkianite

Crystal System:Isometric
Class (H-M):4 3m - Hextetrahedral
Cell Parameters:a = 9.563Å
Unit Cell Volume:V 874.55 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
5.53 (100)
2.88 (90)
2.39 (90)

Chemical Properties of Tarkianite

Formula:
(Cu,Fe)(Re,Mo)
 
4
S
 
8
All elements listed in formula:Cu, Fe, Mo, Re, S

Relationship of Tarkianite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.DB.05Antimonselite
Sb
 
2
Se
 
3
2.DB.05Bismuthinite
Bi
 
2
S
 
3
2.DB.05Guanajuatite
Bi
 
2
(Se,S)
 
3
2.DB.05Metastibnite
Sb
 
2
S
 
3
2.DB.05Pääkkönenite
Sb
 
2
AsS
 
2
2.DB.05Stibnite
Sb
 
2
S
 
3
2.DB.10Ottemannite
beta Sn
 
2
S
 
3
2.DB.10Suredaite
PbSnS
 
3
2.DB.15Bowieite
(Rh,Ir,Pt)
 
2
S
 
3
2.DB.15Kashinite
(Ir,Rh)
 
2
S
 
3
2.DB.20Montbrayite
(Au,Sb)
 
2
Te
 
3
2.DB.25Edgarite
FeNb
 
3
S
 
6
2.DB.35Cameronite
AgCu
 
7
Te
 
10

Other Names for Tarkianite

Synonyms:
IMA2003-004
Other Languages:
German:Tarkianit

Other Information

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

References for Tarkianite

Reference List:

- +
Kojonen, K.K. et al. (2004), Canadian Mineralogist: 42: 539-544.

Internet Links for Tarkianite

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    • Localities for Tarkianite

    The 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 Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Canada
     
    • Ontario
      • Thunder Bay District
        • Marathon
    		K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
    Finland
     
    • Etelä-Suomen Lääni
    		K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
    • Oulun (Oulu) Lääni
      • Nivala
    		K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
    Russia
     
    • Northern Region
      • Karelia Republic
        • Northern Karelia
          • Oulanka plutonic complex
            • Olanga (Oulanka) River
    		K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Monche-Tundra
            • Monchegorsk
    		K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
    USA
     
    • Montana
      • Stillwater Co.
    		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
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Jun 2011 16:12:50
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