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Genkinite

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About GenkiniteHide

01526080014947122511275.jpg
Aleksandr Genkin
Formula:
(Pt,Pd,Rh)4Sb3
Colour:
Pale brown or yellowish tan
Hardness:
5½ - 6
Specific Gravity:
8.83 (Calculated)
Crystal System:
Tetragonal
Name:
Named by Louis J. Cabri, John M. Stewart, J.H.T. Laflamme, and J.T. Szymanski in honor of Aleksandr Dmitrievich Genkin (28 July 1919 - 9 July 2010), Russian mineralogist at the Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences (IGEM RAS) in Moscow. He was a specialist in the ore mineralogy and geology of the platinum group minerals, in particular working on the Cu-Ni mineral deposits of the Noril'sk area of the Russian Federation. Later in life he was a pioneer of advanced techniques in the search for trace amounts of precious metals in sulphides and sulpharsenides. He helped to describe 20 minerals and was a founder of the journal Geologiya Rudnykh Mestorozhdenii (Geology of Ore Deposits).
The Pt analogue of ungavaite. Possibly the Pt-Sb analogue of 'UM1984-07-As:Pd'.


Classification of GenkiniteHide

Approved
Approval Year:
1976
First Published:
1977
2/A.05-120
2.AC.35a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
A : Alloys
C : Alloys of metalloids with PGE
2.6.4.1

2 : SULFIDES
6 : AmBnXp, with (m+n):p = 4:3
3.12.54

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
12 : Sulphides etc. of the platinum metals

Physical Properties of GenkiniteHide

Transparency:
Opaque
Colour:
Pale brown or yellowish tan
Hardness:
5½ - 6 on Mohs scale
Hardness:
VHN25=603 - 677 kg/mm2 - Vickers
Density:
8.83 g/cm3 (Calculated)

Optical Data of GenkiniteHide

Type:
Anisotropic
Anisotropism:
Moderate to strong - from gray to extinction
Colour in reflected light:
Pale brown or tan with a yellowish tinge
Pleochroism:
Weak
Comments:
In oil

Chemical Properties of GenkiniteHide

Formula:
(Pt,Pd,Rh)4Sb3
IMA Formula:
Pt4Sb3
Common Impurities:
Rh,Ni,Cu,Bi,As

Crystallography of GenkiniteHide

Crystal System:
Tetragonal
Class (H-M):
4 2 2 - Trapezohedral
Cell Parameters:
a = 7.736 Å, c = 24.161 Å
Ratio:
a:c = 1 : 3.123
Unit Cell V:
1,445.93 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Irregular grains to 160 microns

Geological EnvironmentHide

Geological Setting:
In platinum bearing ophiolites or ultramafics and derived placers.

Type Occurrence of GenkiniteHide

Place of Conservation of Type Material:
Fersman Museum (N79000), Royal Ontario Museum (M34681), Smithsonian (136485).
Associated Minerals at Type Locality:

Synonyms of GenkiniteHide

Other Language Names for GenkiniteHide

German:Genkinit
Simplified Chinese:四方锑铂矿
Spanish:Genkinita

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Genkinite associated with IsoferroplatinumPt3Fe

Related Minerals - Nickel-Strunz GroupingHide

2.AC.TörnroositePd11As2Te2Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.05aAtheneitePd2As0.75Hg0.25Hex. 6 m2 : P62m
2.AC.05bVincentitePd3AsTet.
2.AC.10cArsenopalladinitePd8(As,Sb)3Tric. 1 : P1
2.AC.10bMertieite-IIPd8Sb2.5As0.5Trig. 3m (3 2/m) : R3c
2.AC.10aStillwateritePd8As3Trig.
2.AC.15aIsomertieitePd11Sb2As2Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.15bMertieite-IPd11(Sb,As)4Hex.
2.AC.15aMiessiitePd11Te2Se2Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.20bPalarstanidePd5(Sn,As)2Hex.
2.AC.20aStibiopalladinitePd5Sb2Hex.
2.AC.20cMenshikovitePd3Ni2As3Hex. 6/m : P63/m
2.AC.25eMajakitePdNiAsHex.
2.AC.25aPalladoarsenidePd2AsMon. 2/m : P2/m
2.AC.25fPalladobismutharsenidePd2(As,Bi)Orth.
2.AC.25cPalladodymite(Pd,Rh)2AsOrth.
2.AC.25bRhodarsenide(Rh,Pd)2AsOrth.
2.AC.25dNaldrettitePd2SbOrth. mm2 : Cmc21
2.AC.30UM1999-02-As:NiRh(Rh,Ni)7As4
2.AC.30PolkanoviteRh12As7Hex.
2.AC.35bUngavaitePd4Sb3Tet. 4 2 2 : P41 21 2
2.AC.40PolaritePd(Bi,Pb)Orth. mm2 : Cmc21
2.AC.45cBorishanskiitePd1+x(As,Pb)2 , x = 0-0.2Orth. mm2
2.AC.45aFrooditeα-PdBi2Mon. 2/m : B2/m
2.AC.45bIridarsenite(Ir,Ru)As2Mon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.12.1Seinäjokite(Fe,Ni)(Sb,As)2Orth.
3.12.2LauriteRuS2Iso. m3 (2/m 3) : Pa3
3.12.3Ruthenarsenite(Ru,Ni)AsOrth.
3.12.4Anduoite(Ru,Os)As2Orth.
3.12.5Ruarsite(Ru,Os)AsSMon.
3.12.6XingzhongitePb2+Ir3+2S4Iso.
3.12.7RhodplumsiteRh3Pb2S2Trig.
3.12.8Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.12.9KonderiteCu3Pb(Rh,Pt,Ir)8S16Hex. 6/m : P6/m
3.12.10Bowieite(Rh,Ir,Pt)2S3Orth. mmm (2/m 2/m 2/m)
3.12.11CherepanoviteRhAsOrth. mmm (2/m 2/m 2/m) : Pnma
3.12.12Hollingworthite(Rh,Pt,Pd)AsSIso. m3 (2/m 3)
3.12.13Vysotskite(Pd,Ni)STet.
3.12.14Vasilite(Pd,Cu)16(S,Te)7Iso.
3.12.15PalladseitePd17Se15Iso. m3m (4/m 3 2/m)
3.12.16Oosterboschite(Pd,Cu)7Se5Orth.
3.12.17TelluropalladinitePd9Te4Mon.
3.12.18TemagamitePd3HgTe3Trig. 3m : P3m1
3.12.19SopcheiteAg4Pd3Te4Orth.
3.12.20MicheneritePdBiTeIso. 2 3 : P21 3
3.12.21KotulskitePd(Te,Bi)Hex.
3.12.22Telargpalite(Pd,Ag)3(Te,Bi)Iso.
3.12.23Merenskyite(Pd,Pt)(Te,Bi)2Trig. 3m : P3m1
3.12.24PalladoarsenidePd2AsMon. 2/m : P2/m
3.12.25StillwateritePd8As3Trig.
3.12.26AtheneitePd2As0.75Hg0.25Hex. 6 m2 : P62m
3.12.27MajakitePdNiAsHex.
3.12.28PalarstanidePd5(Sn,As)2Hex.
3.12.29ArsenopalladinitePd8(As,Sb)3Tric. 1 : P1
3.12.30VincentitePd3AsTet.
3.12.31PalladobismutharsenidePd2(As,Bi)Orth.
3.12.32StibiopalladinitePd5Sb2Hex.
3.12.33Hexatestibiopanickelite(Pd,Ni)(Sb,Te)Hex.
3.12.34Sudburyite(Pd,Ni)SbHex.
3.12.35TestibiopalladitePdTe(Sb,Te)Iso.
3.12.36BorovskitePd3SbTe4Iso.
3.12.37IsomertieitePd11Sb2As2Iso. m3m (4/m 3 2/m) : Fd3m
3.12.38Mertieite-IPd11(Sb,As)4Hex.
3.12.39Mertieite-IIPd8Sb2.5As0.5Trig. 3m (3 2/m) : R3c
3.12.40SobolevskitePd(Bi,Te)Hex.
3.12.41Frooditeα-PdBi2Mon. 2/m : B2/m
3.12.42PolaritePd(Bi,Pb)Orth. mm2 : Cmc21
3.12.43UrvantsevitePd(Bi,Pb)2Tet.
3.12.44CooperitePtSTet. 4/mmm (4/m 2/m 2/m) : P42/mmc
3.12.45Braggite(Pt,Pd,Ni)STet.
3.12.46Kharaelakhite(Cu,Pt,Pb,Fe,Ni)9S8Orth. mmm (2/m 2/m 2/m) : Pmmm
3.12.47MalaniteCu1+(Ir3+Pt4+)S4Iso.
3.12.48Moncheite(Pt,Pd)(Te,Bi)2Trig.
3.12.49MaslovitePtBiTeIso. 2 3 : P21 3
3.12.50SperrylitePtAs2Iso. m3 (2/m 3) : Pa3
3.12.51PlatarsitePtAsSIso.
3.12.52GeversitePtSb2Iso. m3 (2/m 3) : Pa3
3.12.53DaomaniteCuPtAsS2Orth.
3.12.55StumpflitePt(Sb,Bi)Hex.
3.12.56InsizwaitePt(Bi,Sb)2Iso. m3 (2/m 3) : Pa3
3.12.57ErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
3.12.58Omeiite(Os,Ru)As2Orth.
3.12.59Osarsite(Os,Ru)AsSMon.
3.12.60Kashinite(Ir,Rh)2S3Orth.
3.12.61InaglyiteCu3Pb(Ir,Pt)8S16Hex.
3.12.62Cuproiridsite(Cu,Fe)Ir2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.12.63Iridarsenite(Ir,Ru)As2Mon.
3.12.64Irarsite(Ir,Ru,Rh,Pt)AsSIso.
3.12.65TolovkiteIrSbSIso.

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 GenkiniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Cabri, L.J., Stewart, J.M., Laflamme, J.H.G., Szymanski, J.T. (1977) Platinum-group minerals from Onverwacht. III. Genkinite, (Pt,Pd)4Sb3, a new mineral. Canadian Mineralogist: 15: 389-392.
Fleischer, M., Mandarino, J.A., Chao, G.Y. (1979) New mineral names. American Mineralogist: 64: 652-659.
Cabri, L.J., Criddle, A.J., LaFlamme, G.J.H, Bearne, G.S., Harris, D.C. (1981) Mineralogical study of complex Pt-Fe nuggets from Ethiopia. Bulletin de Minéralogie: 104: 508-525.
Prichard, H.M., Tarkian, M. (1988) Platinum and palladium minerals from two PGE-rich localities in the Shetland ophiolite complex. The Canadian Mineralogist 26, 979-990.

Internet Links for GenkiniteHide

Localities for GenkiniteHide

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.
Australia
 
  • New South Wales
    • Kennedy Co.
      • Fifield
5th International Platinum Symposium Bulletin of The Geological Society of Finland Number 61, Part 1,1989,1-64
Canada
 
  • British Columbia
    • Similkameen Mining Division
Nixon, G.T., Cabri, L.J., and Laflamme, J.H.G. (1990) Platinum-group-element mineralizaton in lode and placer deposits associated with the Tulameen Alaskan-type complex, British Columbia. Canadian Mineralogist: 28, 503-535.
Nixon, G. T., Cabri, L. J., & Laflamme, J. G. (1990). Platinum-group-element mineralization in lode and placer deposits associated with the Tulameen Alaskan-type complex, British Columbia. The Canadian Mineralogist, 28(3), 503-535.
Nixon, G. T., Cabri, L. J., & Laflamme, J. G. (1990). Platinum-group-element mineralization in lode and placer deposits associated with the Tulameen Alaskan-type complex, British Columbia. The Canadian Mineralogist, 28(3), 503-535.
  • Ontario
    • Thunder Bay District
      • Seagull Lake Area
        • Seagull Lake complex
Wilson, G., & Harper, G. (2013). Nipigon Reefs Project: A New Look at the PGE-bearing Seagull Mafic-Ultramafic Complex. Field Guide to the Copper-Nickel-Platinum Group Element Deposits of the Lake Superior Region, Precambrian Research Center Guidebook, 13-01.
Ethiopia
 
  • Oromia Region
    • Gimbi
Econ Geol (1986) 81:1278-1285
        • Bir Bir River
Cabri, L. J., Criddle, A. J., Laflamme, J. H. G., Bearne, G. S., & Harris, D. C. (1981). Mineralogical study of complex Pt-Fe nuggets from Ethiopia. Bulletin de Mineralogie, 104(4), 508-525.
Russia
 
  • Kamchatka Krai
Tony Nikischer specimen and analysis; Sidorov, E. G., Tolstykh, N. D., Podlipsky, M. Y., & Pakhomov, I. O. (2004). Placer PGE minerals from the Filippa clinopyroxenite-dunite massif (Kamchatka). Geologiya i Geofizika (Russian Geology and Geophysics), 45(9), 1128-1144.
  • Kemerovo Oblast
Zhmodik, S. M., Nesterenko, G. V., Airiyants, E. V., Belyanin, D. K., Kolpakov, V. V., Podlipsky, M. Y., & Karmanov, N. S. (2016). Alluvial platinum-group minerals as indicators of primary PGE mineralization (placers of southern Siberia). Russian Geology and Geophysics, 57(10), 1437-1464.
South Africa
 
  • Limpopo
    • Burgersfort
      • Sekhukhuneland
Minerals of South Africa; Melcher, F., & Lodziak, J. (2007). Platinum-group minerals of concentrates from the Driekop platinum pipe, Eastern Bushveld Complex Tribute to Eugen F. Stumpfl. Neues Jahrbuch für Mineralogie-Abhandlungen: Journal of Mineralogy and Geochemistry, 183(2), 173-195.; Oberthür, T. (2018). The fate of platinum-group minerals in the exogenic environment—From sulfide ores via oxidized ores into placers: Case studies bushveld complex, South Africa, and Great Dyke, Zimbabwe. Minerals, 8(12), 581.
    • Waterberg District
      • Mogalakwena
Hutchinson, D., & Kinnaird, J. A. (2005). Complex multistage genesis for the Ni–Cu–PGE mineralisation in the southern region of the Platreef, Bushveld Complex, South Africa. Applied Earth Science, 114(4), 208-224.
  • Mpumalanga
    • Lydenburg
Canadian Mineralogist(1977) 15, 389-392; Cabri, L. J., Laflamme, J. G., & Stewart, J. M. (1977). Platinum-group minerals from Onverwacht; II, Platarsite, a new sulfarsenide of platinum. The Canadian Mineralogist, 15(3), 385-388.
UK
 
  • Scotland
    • Shetland
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
Prichard, H. M., & Tarkian, M. (1988). Platinum and palladium minerals from two PGE-rich localities in the Shetland ophiolite complex. The Canadian Mineralogist, 26(4), 979-990.
USA
 
  • Alaska
    • Bethel Census Area
      • Goodnews Bay
        • Salmon River - Red Mountain District
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
 
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