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Platinum

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Formula:
Pt
System:
Isometric
Colour:
Steel grey to dark grey
Lustre:
Metallic
Hardness:
4 - 4½
Name:
From Spanish "platina", diminutive of "plata", silver. The new metal found in large placer deposits during the sixteenth-century Spanish conquest of South America was called "platina del Pinto" after the Rio Pinto, Columbia.
This page provides mineralogical data about Platinum.

Classification of Platinum

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
1.AF.10

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
F : Platinum group elements
Dana 7th ed.:
1.2.1.1
1.2.1.1

1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys
1.82

1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)
mindat.org URL:
http://www.mindat.org/min-3236.html
Please feel free to link to this page.

Type Occurrence of Platinum

Occurrences of Platinum

Geological Setting:
Mafic and ultramafic rocks.

Physical Properties of Platinum

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Steel grey to dark grey
Streak:
Steel grey to dark grey
Hardness (Mohs):
4 - 4½
Hardness (Vickers):
VHN100=279 - 339 kg/mm2
Tenacity:
Malleable
Fracture:
Hackly
Density:
14 - 19 g/cm3 (Measured)    21.472 g/cm3 (Calculated)

Crystallography of Platinum

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fm3m
Cell Parameters:
a = 3.9231Å
Unit Cell Volume:
V 60.38 ų (Calculated from Unit Cell)
Z:
4
Twinning:
On {111}
Comment:
Cubic crystals

Optical Data of Platinum

Type:
Isotropic
Colour in reflected light:
white

Chemical Properties of Platinum

Formula:
Pt
Essential elements:
All elements listed in formula:
Common Impurities:
Fe,Ir,Os,Rh,Pd,Au,Cu

Relationship of Platinum to other Species

1.AF.05Osmium(Os,Ir,Ru)
1.AF.05Rutheniridosmine(Ir,Os,Ru)
1.AF.05Ruthenium(Ru,Ir)
1.AF.10Iridium(Ir,Os,Ru)
1.AF.10Palladium(Pd,Pt)
1.AF.10Rhodium(Rh,Pt)
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
1.31AnyuiiteAu(Pb,Sb)2
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-I(Pd,Cu,Pt)3Sn
1.72Atokite(Pd,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)
1.83HongshiitePtCu
1.84NiggliitePtSn
1.85IsoferroplatinumPt3Fe
1.86TetraferroplatinumPtFe
1.87TulameenitePt2CuFe
1.88FerronickelplatinumPt2FeNi
1.89Rhodium(Rh,Pt)
1.2.1.2Iridium(Ir,Os,Ru)
1.2.1.3Rhodium(Rh,Pt)
1.2.1.4Palladium(Pd,Pt)
1.2.1.5Rutheniridosmine(Ir,Os,Ru)

Other Names for Platinum

Name in Other Languages:
Albanian:Platini
Armenian:Պլատին
Basque:Platino
Belarusian:Плаціна
Bosnian (Latin Script):Platina
Bulgarian:Платина
Catalan:Platí
Corsican:Platinu
Croatian:Platina
Czech:Platina
Danish:Platin
Dutch:Platina
Esperanto:Plateno
Estonian:Plaatina
Finnish:Platina
French:Platine
Friulian:Platin
Galician:Platino
Haitian:Platin
Hungarian:Platina
Icelandic:Platína
Indonesian:Platina
Interlingua:Platino
Italian:Platino
Japanese:白金
Korean:백금
Kurdish (Latin Script):Platîn
Latin:Platinum
Latvian:Platīns
Lithuanian:Platina
Lojban:jinmrplati
Low Saxon:Platin
Luxembourgish:Platin
Macedonian:Платина
Norwegian (Bokmål):Platina
Norwegian (Nynorsk):Platina
Occitan:Platin
Persian:پلاتین
Polish:Platyna
Portuguese:Platina
Quechua:Qullqiya
Romanian:Platină
Serbian (Cyrillic Script):Платина
Serbo-Croatian:Platina
Sicilian:Plàtinu
Simplified Chinese:自然铂
Slovak:Platina
Slovenian:Platina
Spanish:Platino
Swahili:Platini
Swedish:Platina
Tajik (Cyrillic Script):Платина
Traditional Chinese:白金
Turkish:Platin
Ukrainian:Платина
Vietnamese:Bạch kim
Welsh:Platinwm

Other Information

Other Information:
Non magnetic to distinctly magnetic when rich in iron.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Industrial Uses:
Catalysts, jewelry

References for Platinum

Reference List:
Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 106-109.

Schneiderhöhn (1958): 315.

Canadian Mineralogist (1975): 13: 117-126.

Canadian Mineralogist (1991): 29: 231.

Fleet, M.E., De Almeida, C.M., and Angeli, N. (2002) Botryoidal platinum, palladium and potarite from the Bom Sucesso stream, Minas Gerais, Brazil: compositional zoning and origin. Canadian Mineralogist: 40: 341-355.

Internet Links for Platinum

Specimens:
The following Platinum specimens are currently listed for sale on minfind.com.

Localities for Platinum

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.
Mineral and/or Locality  
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