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Atokite

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Formula:
(Pd,Pt)3Sn
System:
Isometric
Colour:
Light cream
Lustre:
Metallic
Hardness:
Name:
For the type locality, the Atok mine.
Compare the chemically similar taimyrite-I.


Classification of Atokite

Approved
1.AG.10

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
G : PGE-metal alloys
Dana 7th ed.:
1.2.7.2
1.2.5.3

1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys
1.72

1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)

Physical Properties of Atokite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Light cream
Comment:
in reflected light
Hardness (Mohs):
Hardness (Vickers):
VHN25=357 kg/mm2
Density:
14.19 g/cm3 (Calculated)

Optical Data of Atokite

Type:
Isotropic
Type:
Anisotropic
Anisotropism:
Slight, due to strain
Reflectivity:
480nmR1=57.4%R2= 60.8%
546nmR1=59.2%R2= 65.1%
589nmR1=60.4%R2= 63.5%
656nmR1=62.2%R2= 65.8%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 65.8%.
R1 shown in black, R2 shown in red
Colour in reflected light:
light cream
Pleochroism:
Weak

Chemical Properties of Atokite

Formula:
(Pd,Pt)3Sn
IMA Formula:
Pd3Sn
Elements listed in formula:
Analytical Data:
Merensky Reef, South Africa; by electron microprobe.
Pt (43.74)
Pd (38.35)
Sn (18.65)
Total (100.74)

Crystallography of Atokite

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fm3m
Space Group Setting:
Fm3m
Cell Parameters:
a = 3.991 Å
Unit Cell Volume:
V 63.57 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Small grains less than 100 microns.
X-Ray Powder Diffraction Data:
d-spacingIntensity
2.295 (100)
1.992 (80)
1.408 (90)
1.202 (100)
0.9153 (90)
0.8922 (80)
0.8145 (90)
Comments:
Merensky Reef, South Africa.

Type Occurrence of Atokite

Geological Setting of Type Material:
As very sparse grains in concentrates of ore.
Empirical Formula:
(Pd1.46Pt0.91)Sn0.81

Relationship of Atokite to other Species

Common Associates:
1.AG.05Hexaferrum(Fe,Os,Ru,Ir)
1.AG.05Garutiite(Ni,Fe,Ir)
1.AG.10Rustenburgite(Pt,Pd)3Sn
1.AG.10Zvyagintsevite(Pd,Pt,Au)3(Pb,Sn)
1.AG.15Taimyrite(Pd,Cu,Pt)3Sn
1.AG.15Tatyanaite(Pt,Pd,Cu)9Cu3Sn4
1.AG.20PaolovitePd2Sn
1.AG.25PlumbopalladinitePd3Pb2
1.AG.25Stannopalladinite(Pd,Cu)3Sn2
1.AG.30CabriitePd2CuSn
1.AG.35ChengdeiteIr3Fe
1.AG.35IsoferroplatinumPt3Fe
1.AG.40FerronickelplatinumPt2FeNi
1.AG.40TetraferroplatinumPtFe
1.AG.40TulameenitePt2CuFe
1.AG.45HongshiitePtCu
1.AG.45SkaergaarditePdCu
1.AG.50YixunitePt3In
1.AG.55DamiaoitePtIn2
1.AG.60NiggliitePtSn
1.AG.65BortnikovitePd4Cu3Zn
1.AG.70NielsenitePdCu3
1.1CopperCu
1.2SilverAg
1.5GoldAu
1.6AuricuprideCu3Au
1.7Tetra-auricuprideAuCu
1.8ZincZn
1.9CadmiumCd
1.10DanbaiteCuZn2
1.11ZhanghengiteCuZn
1.12MercuryHg
1.13KolymiteCu7Hg6
1.14MoschellandsbergiteAg2Hg3
1.15EugeniteAg11Hg2
1.16SchachneriteAg1.1Hg0.9
1.17ParaschachneriteAg3Hg2
1.18LuanheiteAg3Hg
1.19Weishanite(Au,Ag)3Hg2
1.20IndiumIn
1.21AluminiumAl
1.22Khatyrkite(Cu,Zn)Al2
1.23Cupalite(Cu,Zn)Al
1.24DiamondC
1.25GraphiteC
1.26ChaoiteC
1.27LonsdaleiteC
1.28SiliconSi
1.29TinSn
1.30LeadPb
1.31AnyuiiteAuPb2
1.31NovodnepriteAuPb3
1.32LeadamalgamPb0.7Hg0.3
1.33ArsenicAs
1.34ArsenolampriteAs
1.35PaxiteCuAs2
1.36KoutekiteCu5As2
1.37DomeykiteCu3As
1.38Algodonite(Cu1-xAsx)
1.39NovákiteCu20AgAs10
1.40KutinaiteAg6Cu14As7
1.41AntimonySb
1.42StibarsenAsSb
1.43ParadocrasiteSb3As
1.44HorsforditeCu, Sb
1.45CuprostibiteCu2(Sb,Tl)
1.46Allargentum(Ag1-xSbx)
1.47AurostibiteAuSb2
1.48DyscrasiteAg3Sb
1.49BismuthBi
1.50MaldoniteAu2Bi
1.51SulphurS8
1.52RosickýiteS
1.53SeleniumSe
1.54TelluriumTe
1.55ChromiumCr
1.56RheniumRe
1.57IronFe
1.58ChromferideFe3Cr1-x (x=0.6)
1.59FerchromideCr3Fe1-x
1.60WairauiteCoFe
1.61NickelNi
1.62Kamacite(Fe,Ni)
1.63Taenite(Fe,Ni)
1.64TetrataeniteFeNi
1.65AwaruiteNi3Fe
1.66Palladium(Pd,Pt)
1.67PotaritePdHg
1.68PaolovitePd2Sn
1.69Stannopalladinite(Pd,Cu)3Sn2
1.70CabriitePd2CuSn
1.71Taimyrite(Pd,Cu,Pt)3Sn
1.73Rustenburgite(Pt,Pd)3Sn
1.74Zvyagintsevite(Pd,Pt,Au)3(Pb,Sn)
1.75PlumbopalladinitePd3Pb2
1.76Osmium(Os,Ir,Ru)
1.77Iridium(Ir,Os,Ru)
1.82PlatinumPt
1.83HongshiitePtCu
1.84NiggliitePtSn
1.85IsoferroplatinumPt3Fe
1.86TetraferroplatinumPtFe
1.87TulameenitePt2CuFe
1.88FerronickelplatinumPt2FeNi
1.89Rhodium(Rh,Pt)

Other Names for Atokite

Name in Other Languages:
German:Atokit
Russian:Атокит
Simplified Chinese:锡铂钯矿
Spanish:Atokita
Traditional Chinese:錫鉑鈀礦

Other Information

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 Atokite

Reference List:
Mihálik, P., Hiemstra, S.A. and de Villiers, J.P.R. (1975): Rustenburgite and atokite, two new platinum-group minerals from the Merensky Reef, Bushveld Igneous Complex. Canadian Mineralogist, 13, 146-150.

American Mineralogist (1976): 61: 340.

Internet Links for Atokite

mindat.org URL:
https://www.mindat.org/min-413.html
Please feel free to link to this page.

Localities for Atokite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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
    • Kenora District
      • Ring of Fire
        • BMA527861 Area
Musa Karkus (2010)
    • Thunder Bay District
Watkinson & Ohnenstetter (1992); Watkinson, D. H., & Jones, P. C. (1996). Platinum-group minerals in fluid inclusions from the Marathon deposit, Coldwell Complex, Canada. Mineralogy and Petrology, 57(1-2), 91-96.
Mcdonald, A.M., Cabri, L.J., Stanley, C.J., Good, D.J., Redpath, J., Lane, G., Spratt, J. & Ames, D.E. (2015) Coldwellite, Pd3Ag2S, a new mineral species from the Marathon deposit, Coldwell complex, Ontario, Canada. Canadian Mineralogist 53, 1-13.
      • O'Neill Township
American Mineralogist, Volume 76, pages 1694-1700, 199l; Canadian Mineralogist 30, 121; 5th International Platinum Symposium Bulletin of The Geological Society of Finland Number 61, Part 1,1989,1-64
      • Seeley Lake Area
EcoMetrix Reort for Stillwater Canada Inc, Marathon Project (2012) Table 4.1-3
China
 
  • Yunnan Province
    • Dali Autonomous Prefecture
      • Midu Co.
Huanbin Song, Mingqin He, Shangzhong Zhang, and Fenghuang Yi (2008): Chinese Journal of Geochemistry 27, 104-108.; Shengwei Wang, Xiaoming Sun, Zhenwen Liao, Bangguo Zhou, Maojin Luo, Yang Guo, Xiaofang Jiang, Huaping Zhu, Dong Ma, and Zhanwu Shen (2012): Mineral Deposits 31(6), 1259-1276
Finland
 
  • Lapland Region
    • Inari
      • Lemmenjoki
33rd International Geological Congress (2008) session MPM-04 Platinum-group mineralogy: Pt-Pd selenides from river placers, northern Finland; Kari K. Kojonen, Andrew M. McDonald, Chris J. Stanley, and Bo Johanson (2011) Törnroosite, Pd11As2Te2, A New Mineral Species Related to Isomertieite from Miessijoki, Finnish Lapland, Finland. Can Mineral 49:1643-1651; Kari Kojonen (2012) PGE ore potential in the southwestern granulite belt of Northern Finland. Geological Survey of Finland, Report of Investigation 207 pp 64-67
Russia
 
  • Eastern-Siberian Region
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
        • Putoran Plateau
Goldschmidt Conference Abstracts (2011) Mineralogical Magazine p1893
Can Mineral December 2011 vol. 49 no. 6 1479-1504
Vymazalová, A., Laufek, F., Sluzhenikin, S.F., Stanley, C.J. (2016): Norilskite, (Pd,Ag)7Pb4, a new mineral from Noril`sk -Talnakh deposit, Russia. Mineralogical Magazine: 80: (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12845 (2016).
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
[AmMin 84:1845]; Can Min 38:599-609; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Barkov, A. Y., Martin, R. F., Poirier, G., & Yakovlev, Y. N. (2000). The taimyrite–tatyanaite series and zoning in intermetallic compounds of Pt, Pd, Cu, and Sn from Noril’sk, Siberia, Russia. The Canadian Mineralogist, 38(3), 599-609
2014 Ultramafic-mafic intrusions, volcanic rocks and PGE-Cu-Ni sulfide deposits of the Noril’sk Province, Polar Siberia . 12th International Platinum Symposium
    • Transbaikalia (Zabaykalye)
      • Buriatia Republic (Buryatia)
        • Dovyren Highlands
Rudashevskiy N.S., Krecer D.A., Orsoev D.A., Kislov E.V. (2003) Palladium-platinum mineralization in vein Cu-Ni-ores of Yoko-Dovyrenskiy laiered massif, - DAN, 391(4), p. 519-522 (in Rus.)
  • Far-Eastern Region
    • Khabarovskiy Kray
      • Ayan-Maya district
        • Aldan shield
Shcheka G.G., Lehmann B., Gierth E., Gomann K., Wallianos A. (2004) Macrocrystals of Pt-Fe alloy from the Kondyor PGE placer deposit, Khabarovskiy kray, Russia: trace-element content, mineral inclusions and reaction assemblages, - Canadian Mineralogist, v.42, N2, pp. 601-617.
  • Northern Region
    • Karelia Republic
      • Lake Onega
Grokhovskaya, T. L., Lapina, M. I., Ganin, V. A., & Grinevich, N. G. (2005). PGE mineralization in the Burakovsk Layered Complex, Southern Karelia, Russia. Geology of Ore Deposits C/C of Geologiia Rudnykh Mestorozhdenii, 47(4), 283.
Grishaenko, M. V. P., & Federation, R. (2007). Independent Report on the Shalozerskoe (Burakovsky), Lukkulaisvaara and Tsipringa Platinum, Palladium, Copper, Nickel Deposits in the Autonomous Republic of Karelia Russian Federation
      • Northern Karelia
        • Oulanka plutonic complex
          • Olanga River (Oulanka River)
A. Yu. Barkov et al. , Eur. J. Mineral. , 1996, 8, pp. 311-316.
(2014) 12th International Platinum Symposium p63
    • Murmanskaja Oblast'
      • Kola Peninsula
Gabov, D. A. (2010). PGE and Au minerals from the low-sulfide ore of the Pana Tundra Pluton, Kola Peninsula. Geology of Ore Deposits, 52(7), 624-629.
33rd International Geological Congress (2008) session MPM-04 Platinum-group mineralogy: Platinum-group minerals in the PGE deposit of the Fedorovo-Pansky layered intrusion, Kola Peninsula
33rd International Geological Congress (2008) session MPM-04 Platinum-group mineralogy: Platinum-group minerals in the PGE deposit of the Fedorovo-Pansky layered intrusion, Kola Peninsula
        • Pechengsky District
Abzalov, M.Z., and Both, R.A. (1997): Mineralogy and Petrology 61, 119-143.
South Africa
 
  • Limpopo Province
www.bgr.de/b423/oberthuer_ptconf_pgm_bushveld.pdf.
      • Burgersfort
        • Sekhukhuneland
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.
Minerals of South Africa
The Canadian Mineralogist Vol. 43, pp. 1711-1734 (2005)
      • Waterberg District
        • Mokopane (Potgietersrus)
Holwell, D. A., McDonald, I., & Armitage, P. E. B. (2006). Platinum-group mineral assemblages in the Platreef at the Sandsloot Mine, northern Bushveld Complex, South Africa. Mineralogical Magazine, 70(1), 83-101.; HOLWELL D.A., MCDONALD I. & ARMITAGE, P.E.B. (2006). Platinum-group mineral assemblages in the Platreef at the South Central Pit, Sandsloot Mine, northern Bushveld Complex, South Africa. Mineralogical Magazine, 70, 83-101.
    • Eastern Bushveld Complex
      • Merensky Reef
Can Min 13 (1975), 146
    • Phalaborwa
      • Loolekop
Nikolay Rudashevsky et al (2001) Efficient Technology of Ore Minerals Investigation of PGE-Bearing Deposits – Case Study in (2001) European Union of Geosciences Conference XI (OS6)
  • North West Province
    • Bojanala Platinum District
      • Western Bushveld Complex
Minerals of South Africa
Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa, pg 185
USA
 
  • Montana
    • Stillwater Co.
      • Nye
        • Stillwater Complex
          • J-M Reef (Howland Reef)
www.cannonmicroprobe.com/Mineral_Specimens.htm
Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Zimbabwe
 
  • Masvingo
    • Chiredzi Mining District (Hartley Mining District)
      • Chiredzi
LIU, J., JIN, S. and WANG, Y. (2014), The Occurrence of Useful Components in Platinum-Palladium Deposit in the Great Dyke, Zimbabwe. Acta Geologica Sinica, 88: 1466–1467
Mineral and/or Locality  
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