Platarsite (original) (raw)

05857100014947316808036.jpg

05857100014947316808036.jpg

05857100014947316808036.jpg

About PlatarsiteHide

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Originally assumed to be PtAsS. May contain minor Rh and Ru replacing Pt.

Name:

The name reflects its composition: platinum, arsenic and sulfur. The related minerals osarsite, irarsite, and ruarsite are similarly named.

Unique IdentifiersHide

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Mindat ID:

3235 (as Platarsite)
3723 (as Sperrylite)

Long-form identifier:

mindat:1:1:3235:9 (as Platarsite)
mindat:1:1:3723:1 (as Sperrylite)

e42a85cc-a10d-4200-a03d-d2f3ff1240e6 (as Platarsite)
1c6f6c50-f5bc-4c34-aa16-5140c03cf683 (as Sperrylite)

IMA Classification of PlatarsiteHide

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Approval history:

IMA1976-050

Voting proposal 23-A (IMA Newsletter 72): Discreditation of platarsite
Proposal 23-A is accepted, and platarsite is discredited as it corresponds to a S-rich variety of sperrylite.

First description reference:

Classification of PlatarsiteHide

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2.EB.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.

2.12.3.6

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2

3.12.51

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

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.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol Source Reference
Plt IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Plt The Canadian Mineralogist (2019) The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of PlatarsiteHide

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Hardness:

VHN50=1486 kg/mm2 - Vickers

Density:

8.0 g/cm3 (Measured) 8.375 g/cm3 (Calculated)

Comment:

9.627 calculated for ideal end member

Optical Data of PlatarsiteHide

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Reflectivity:

Wavelength R
420nm 47.7%
440nm 47.4%
460nm 47.3%
480nm 47.3%
500nm 47.1%
520nm 47.5%
540nm 48.0%
560nm 48.2%
580nm 48.7%
600nm 49.0%
620nm 49.9%
640nm 48.9%
660nm 49.5%
680nm 49.8%
700nm 49.6%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 49.9%.

Colour in reflected light:

gray

Chemistry of PlatarsiteHide

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Mindat Formula:

Pt(As,S)2

Originally assumed to be PtAsS. May contain minor Rh and Ru replacing Pt.

Crystallography of PlatarsiteHide

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Class (H-M):

m_3(2/m_3) - Diploidal

Cell Parameters:

a = 5.790(1) Å

Unit Cell V:

194.10 ų (Calculated from Unit Cell)

Morphology:

subhedral grains

Crystal StructureHide

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ID Species Reference Link Year Locality Pressure (GPa) Temp (K)
0005169 Platarsite Szymanski J T (1979) The crystal structure of platarsite, Pt(As,S)2, and a comparison with sperrylite, PtAs2 The Canadian Mineralogist 17 117-123 1979 Onverwacht mine, Transvaal 0 293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
3.345 Å (80)
2.896 Å (90)
2.590 Å (50)
2.364 Å (50)
2.047 Å (60)
1.746 Å (100)
1.114 Å (70)

Comments:

all reflections broad.

Geological EnvironmentHide

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First Recorded Occurrence of PlatarsiteHide

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Place of Conservation of First Recorded Material:

Royal Ontario Museum, Toronto.
Canadian Museum of Nature, Ottawa, Canada.
National Museum of Natural History, Washington, D.C., USA, 136485.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia.

Reference:

Cabri, L.J., Laflamme, J.H.G., Stewart, J.M. (1977) Platinum-group minerals from Onverwacht. II. Platarsite, a new sulfarsenide of platinum. Canadian Mineralogist: 15: 385-388.

Synonyms of PlatarsiteHide

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Other Language Names for PlatarsiteHide

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Relationship of Platarsite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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2.EB. Iridarsenite (Ir,Ru)As2 Mon. 2/m : _P_21/b
2.EB. Selenolaurite RuSe2 Iso. m_3(2/m_3) : P _a_3
2.EB. Andrieslombaardite RhSbS Iso. 23 : _P_213
2.EB. Kanatzidisite (SbBiS3)2Te2 Mon. 2/m : _P_21/m
2.EB.05a Aurostibite AuSb2 Iso. m_3(2/m_3) : P _a_3
2.EB.05b Bambollaite Cu(Se,Te)2 Tet.
2.EB.05a Cattierite CoS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Erlichmanite OsS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Fukuchilite Cu3FeS8 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Geversite PtSb2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Hauerite MnS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Insizwaite Pt(Bi,Sb)2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Krut'aite CuSe2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Laurite RuS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Penroseite (Ni,Co,Cu)Se2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Pyrite FeS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Sperrylite PtAs2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Trogtalite CoSe2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Vaesite NiS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Villamanínite (Cu,Ni,Co,Fe)S2 Tric.
2.EB.05a Dzharkenite FeSe2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Gaotaiite Ir3Te8 Iso. m_3(2/m_3) : P _a_3
2.EB.05a v Cayeuxite
2.EB.10b Alloclasite Co1-xFexAsS Mon. 2 : _P_21
2.EB.10d Costibite CoSbS Orth. m _m_2 : P m _n_21
2.EB.10a Ferroselite FeSe2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.10a Frohbergite FeTe2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.10c Glaucodot (Co0.50Fe0.50)AsS Orth. m _m_2 : P m _n_21
2.EB.10a Kullerudite NiSe2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.10a Marcasite FeS2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.10a Mattagamite CoTe2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.10e Paracostibite CoSbS Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
2.EB.10e Pararammelsbergite NiAs2 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
2.EB.10f Oenite CoSbAs Orth.
2.EB.10a Petříčekite CuSe2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.15a Anduoite (Ru,Os)As2 Orth.
2.EB.15a Clinosafflorite CoAs2 Mon. 2/m : _P_21/m
2.EB.15a Löllingite FeAs2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.15a Nisbite NiSb2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.15a Omeiite (Os,Ru)As2 Orth.
2.EB.15c Paxite CuAs2 Mon. 2/m : _P_21/b
2.EB.15a Rammelsbergite NiAs2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.15a Safflorite (Co,Ni,Fe)As2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.15b Seinäjokite FeSb2 Orth.
2.EB.20 Arsenopyrite FeAsS Mon. 2/m : _P_21/b
2.EB.20 Gudmundite FeSbS Mon. 2/m : _P_21/b
2.EB.20 Osarsite (Os,Ru)AsS Mon.
2.EB.20 Ruarsite (Ru,Os)AsS Mon.
2.EB.25 va Antimony-bearing Gersdorffite Ni(As,Sb)S
2.EB.25 Cobaltite CoAsS Orth. m _m_2 : P c _a_21
2.EB.25 Gersdorffite NiAsS Iso. m_3(2/m_3) : P _a_3
2.EB.25 Hollingworthite (Rh,Pt,Pd)AsS Iso. m_3(2/m_3) : P _a_3
2.EB.25 Irarsite (Ir,Ru,Rh,Pt)AsS Iso. m_3(2/m_3) : P _a_3
2.EB.25 Jolliffeite NiAsSe Iso. m_3(2/m_3) : P _a_3
2.EB.25 Krutovite NiAs2 Iso. 23 : _P_213
2.EB.25 Maslovite PtBiTe Iso. 23 : _P_213
2.EB.25 Michenerite PdBiTe Iso. 23 : _P_213
2.EB.25 Padmaite PdBiSe Iso. 432
2.EB.25 Testibiopalladite PdSbTe Iso.
2.EB.25 Tolovkite IrSbS Iso.
2.EB.25 Ullmannite NiSbS Iso. 23 : _P_213
2.EB.25 Willyamite CoSbS
2.EB.25 Changchengite IrBiS Iso. 23 : _P_213
2.EB.25 Mayingite IrBiTe Iso. m_3(2/m_3) : P _a_3
2.EB.25 Kalungaite PdAsSe Iso. m_3(2/m_3) : P _a_3
2.EB.25 Milotaite PdSbSe Iso. 23 : _P_213
2.EB.25 Paragersdorffite Ni(As,S)2 Iso. m_3(2/m_3) : P _a_3
2.EB.25 Orthogersdorffite NiAsS Orth. m _m_2 : P c _a_21
2.EB.25 Kvačekite NiSbSe Iso. 23 : _P_213
2.EB.30 Urvantsevite Pd(Bi,Pb)2 Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_4/m m m
2.EB.35 Rheniite ReS2 Tric. 1 : _P_1

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.

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References for PlatarsiteHide

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Localities for PlatarsiteHide

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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

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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.

Albania
Dibër County Bater-Martanesh mining district ⓘ Bulqiza Complex (Bulqiza Massif) Zaccarini F et al. (PGE) +1 other reference
Australia
Western Australia City of Karratha Karratha ⓘ Munni Munni Complex HOATSON et al. (1992)
Austria
Styria Leoben District ⓘ Kraubath an der Mur Zaccarini F et al. (PGE) +4 other references
Sankt Stefan ob Leoben Mitterberg ⓘ Unnamed chromite pit Malitch et al. (2002)
ⓘ Sommergraben Melcher+Mali (1998)
Brazil
Bahia Ipiaú Mirabela farm ⓘ Santa Rita deposit Knight (2014)
Pará Curionópolis ⓘ Luanga Cr-Pt-Pd deposit 33rd International Geological Congress (2008)
São Paulo ⓘ Monte Alegre do Sul 33rd International Geological Congress (2008)
Canada
British Columbia Similkameen Mining Division Tulameen River ⓘ Placer Deposits Petrov (n.d.)
Ontario Thunder Bay District Coldwell complex ⓘ Marathon deposit Ames et al. (2017)
ⓘ W horizon Good et al. (2017)
Greenwich Lake Area ⓘ Thunder Bay North deposit (Current Lake zone) Good et al. (2010)
Ecuador
Carchi Province Awa Indian Preserve ⓘ Camumbi River gold placer Barron et al. (2024)
Finland
ⓘ Lapland Törroos Ragnar +1 other reference
Portimo complex ⓘ Konttijärvi deposit
Greece
Central Greece Phthiotis Domokos ⓘ Agios Stefanos mine Tsikouras et al. (2016)
Central Macedonia Imathia ⓘ Veria ophiolite complex Zaccarini F et al. (PGE) +2 other references
ⓘ Othrys ophiolite complex Zaccarini F et al. (PGE) +1 other reference
Thessaly Trikala Meteora ⓘ Pefki Argirios Kapsiotis et al. (2011)
Greenland
Sermersooq Kruuse Fjord ⓘ Kruuse Fjord complex Arnason et al. (1997)
India
Karnataka Davanagere District Shimoga schist belt ⓘ Hanumalapur Complex Alapieti et al. (2005) +1 other reference
Myanmar
Sagaing Region Monywa District ⓘ Chindwin river Hagen et al. (1990)
Norway
Trøndelag Røros ⓘ Østhammeren (Osthammeren) Zaccarini F et al. (PGE) +2 other references
Papua New Guinea
Oro Province ⓘ Aikora River Cabri et al. (2022)
Russia
Altai Republic Turochaksky District ⓘ Kaurchak River Nesterenko +4 other references
Buryatia Severo-Baykalsky District Dovyren Highlands Yoko-Dovyrensky Massif ⓘ Bol’shoy (Big) stream Spiridonov et al. (2018)
Irkutsk Oblast Uda–Biryusa district ⓘ Ognit complex Shvedov et al. (2017) +1 other reference
ⓘ Tartai Massif Podlipsky et al. (2015)
Kamchatka Krai Koryak Okrug Karaginsky District ⓘ Pustaya River Tolstykh et al. (2000)
Olyutorsky district ⓘ Epilchik mafic-ultramafic complex Sidorov et al. (2021)
Korf ⓘ Gal'moenan ultrabasic massif Tolstykh et al. (2004)
ⓘ Levtyrinyvayam River placer Tolstykh et al. (2004)
Sobolevsky District ⓘ Mount Filipp Tony Nikischer specimen and analysis +1 other reference
Kemerovo Oblast ⓘ Koura River Nesterenko +6 other references
Murmansk Oblast ⓘ Fedorovo-Pansky massif (Pana layered complex) Gabov (2010)
ⓘ Fedorova Tundra block Groshev +6 other references
ⓘ FT-1 reef Groshev +6 other references
Monche tundra intrusion ⓘ Monchetundra deposit Grokhovskaya et al. (2009)
ⓘ Monchegorsk Yury L. Voytekhovsky (2008)
ⓘ Nyud-2 deposit Chashchin et al. (2021)
ⓘ Vuruchuaivench prospect Grokhovskaya et al. (2000)
ⓘ Pechengsky District Chashchin et al. (2013)
ⓘ Volchetundra massif Chashchin et al. (2013)
Republic of Karelia ⓘ Burakovskii Layered Complex Grokhovskaya et al. (2005)
ⓘ Shalozerskoe (Kuk Ruchei) deposit Grishaenko et al. (2007)
Northern Karelia ⓘ Kaalamo massif Лавров (2013) +1 other reference
ⓘ Sakha [World of Stones 12:49]
Anabar River basin ⓘ Mayat-Vodorazdel’nyi Airiyants et al. (2014)
Sverdlovsk Oblast Yekaterinburg ⓘ Uktus complex Zaccarini et al. (2013) +1 other reference
Yamalo-Nenets Autonomous Okrug Labytnangi ⓘ Ozernoe Occurrence Murzin et al. (2022)
Serbia
Central Serbia Rasina District Trstenik Veluće ⓘ Veluce ophiolite complex Krstic et al. (1997)
South Africa
Limpopo Capricorn District Municipality Blouberg Local Municipality Waterberg project ⓘ F-Zone McCreesh et al. (2018)
Sekhukhune District Municipality Fetakgomo Tubatse Local Municipality Burgersfort ⓘ Mooihoek Farm 255 KT Rudashevsky et al. (1992)
Sekhukhuneland ⓘ Driekop mine Cairncross et al. (1995)
ⓘ Lesego project Montjoie (2018)
Steelpoort ⓘ Onverwacht Mine (FRL) II et al. (3) +4 other references
Waterberg District Municipality Mogalakwena Local Municipality Mogalakwena ⓘ Mokopane Yudovskaya et al. (2011)
ⓘ Overysel deposit Cairncross et al. (1995) +1 other reference
ⓘ Sandsloot mine Holwell et al. (2006) +1 other reference
ⓘ Zwartfontein Cairncross et al. (1995)
North West Bojanala Platinum District Municipality Rustenburg Local Municipality Rustenburg ⓘ Impala Platinum mines Prichard et al. (2004)
ⓘ Karee Mine Junge et al. (2014)
ⓘ Rustenburg Town & Townlands Farm Zaccarini +1 other reference
Spain
Andalusia Málaga Ojén Ojén lherzolite massif ⓘ Arroyo de los Caballos Baurier-Aymat +7 other references
ⓘ Cerro del Algarrobo Baurier-Aymat +7 other references
Galicia A Coruña ⓘ Herbeira ultramafic massif Madon et al. (1991) +4 other references
Turkey
Kahramanmaraş Province ⓘ Elbistan-Kahramanmaraş podiform ophiolitic chromitites Kozlu et al. (2014)
UK
Scotland Highland Caol and Mallaig Isle of Rum ⓘ Rum Central Complex ? Power et al. (2000)
USA
Alaska Bethel Census Area Goodnews Bay Salmon River - Red Mountain District ⓘ Fox Gulch Fechner SA (1988) +1 other reference
Montana Stillwater County J-M Reef (Howland Reef) ⓘ Minneapolis adit Bart Cannon (Cannon Microprobe)
Zimbabwe
Mashonaland West Chegutu District ⓘ Hartley Mine Oberthür et al. (2003) +1 other reference
Midlands Zvishavane District Zvishavane (Shabani; Shabanie; Shavani) ⓘ Mimosa Mine Nashwa (2008)