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Potarite

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Formula:
PdHg
Colour:
Silver-white
Lustre:
Metallic
Hardness:
Specific Gravity:
14.88
Crystal System:
Tetragonal
Name:
For the type locality, the Potaro River, Guyana
This page provides mineralogical data about Potarite.


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Classification of PotariteHide

Approved, 'Grandfathered' (first described prior to 1959)
1.AD.25

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
D : Mercury-amalgam family
Dana 7th ed.:
1.2.5.1
1.2.4.4

1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys
1.67

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

Physical Properties of PotariteHide

Metallic
Transparency:
Opaque
Colour:
Silver-white
Streak:
Silver white
Hardness:
3½ on Mohs scale
Tenacity:
Brittle
Density:
14.88 g/cm3 (Measured)    15.09 g/cm3 (Calculated)

Optical Data of PotariteHide

Type:
Anisotropic
Anisotropism:
brown with an orange tint
Colour in reflected light:
Cream to creamy white

Chemical Properties of PotariteHide

Formula:
PdHg
Common Impurities:
Cu

Crystallography of PotariteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/mmm
Cell Parameters:
a = 3.026 Å, c = 3.702 Å
Ratio:
a:c = 1 : 1.223
Unit Cell V:
33.90 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Small grains or nuggets, octahedral points, columnar, fibrous.

Type Occurrence of PotariteHide

Other Language Names for PotariteHide

German:Potarit
Japanese:ポタロ鉱
Simplified Chinese:汞钯矿
Spanish:Potarita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Palladium1 photo of Potarite associated with Palladium on mindat.org.
Platinum1 photo of Potarite associated with Platinum on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

1.AD.05MercuryHgTrig. 3m (3 2/m) : R3m
1.AD.10BelendorffiteCu7Hg6Trig.
1.AD.10KolymiteCu7Hg6Iso.
1.AD.15cEugeniteAg11Hg2Iso.
1.AD.15bLuanheiteAg3HgHex.
1.AD.15dMoschellandsbergiteAg2Hg3Iso. m3m (4/m 3 2/m)
1.AD.15aParaschachneriteAg3Hg2Orth.
1.AD.15aSchachneriteAg1.1Hg0.9Hex.
1.AD.20aWeishanite(Au,Ag)3Hg2Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.AD.20bGoldamalgam (of Chen et al.)(Au,Ag)HgIso. m3m (4/m 3 2/m) : Im3m
1.AD.30LeadamalgamPb0.7Hg0.3Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm

Related Minerals - Dana Grouping (8th Ed.)Hide

1.2.4.1TetraferroplatinumPtFeTet.
1.2.4.2TulameenitePt2CuFeTet.
1.2.4.3FerronickelplatinumPt2FeNiTet.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

1.1CopperCuIso. m3m (4/m 3 2/m) : Fm3m
1.2SilverAgIso. m3m (4/m 3 2/m) : Fm3m
1.5GoldAuIso. m3m (4/m 3 2/m) : Fm3m
1.6AuricuprideCu3AuOrth.
1.7Tetra-auricuprideAuCuTet.
1.8ZincZnHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.9CadmiumCdHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.10DanbaiteCuZn2Iso.
1.11ZhanghengiteCuZnIso.
1.12MercuryHgTrig. 3m (3 2/m) : R3m
1.13KolymiteCu7Hg6Iso.
1.14MoschellandsbergiteAg2Hg3Iso. m3m (4/m 3 2/m)
1.15EugeniteAg11Hg2Iso.
1.16SchachneriteAg1.1Hg0.9Hex.
1.17ParaschachneriteAg3Hg2Orth.
1.18LuanheiteAg3HgHex.
1.19Weishanite(Au,Ag)3Hg2Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.20IndiumInTet.
1.21AluminiumAlIso. m3m (4/m 3 2/m) : Fm3m
1.22Khatyrkite(Cu,Zn)Al2Tet.
1.23Cupalite(Cu,Zn)AlOrth.
1.24DiamondCIso. m3m (4/m 3 2/m) : Fd3m
1.25GraphiteCHex. 6mm : P63mc
1.26ChaoiteCHex. 6/mmm (6/m 2/m 2/m) : P6/mmm
1.27LonsdaleiteCHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.28SiliconSi
1.29TinSnTet. 4/mmm (4/m 2/m 2/m) : I41/amd
1.30LeadPbIso. m3m (4/m 3 2/m) : Fm3m
1.31AnyuiiteAuPb2Tet. 4/mmm (4/m 2/m 2/m) : I4/mcm
1.31NovodnepriteAuPb3Tet. 4 2m : I4 2m
1.32LeadamalgamPb0.7Hg0.3Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
1.33ArsenicAsTrig. 3m (3 2/m) : R3m
1.34ArsenolampriteAsOrth. mmm (2/m 2/m 2/m)
1.35PaxiteCuAs2Mon.
1.36KoutekiteCu5As2Hex.
1.37DomeykiteCu3AsIso. 4 3m : I4 3d
1.38Algodonite(Cu1-xAsx)Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.39NovákiteCu20AgAs10Mon.
1.40KutinaiteAg6Cu14As7 Iso.
1.41AntimonySbTrig. 3m (3 2/m) : R3m
1.42StibarsenAsSbTrig. 3m (3 2/m) : R3m
1.43ParadocrasiteSb3AsMon. 2 : B2
1.44HorsforditeCu, Sb
1.45CuprostibiteCu2(Sb,Tl)Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
1.46Allargentum(Ag1-xSbx)Hex.
1.47AurostibiteAuSb2Iso. m3 (2/m 3) : Pa3
1.48DyscrasiteAg3SbOrth. mm2 : Pmm2
1.49BismuthBiTrig. 3m (3 2/m) : R3m
1.50MaldoniteAu2BiIso. m3m (4/m 3 2/m) : Fd3m
1.51SulphurS8Orth. mmm (2/m 2/m 2/m) : Fddd
1.52RosickýiteSMon. 2/m : P2/b
1.53SeleniumSeTrig. 3 2 : P31 2 1
1.54TelluriumTeHex.
1.55ChromiumCrIso. m3m (4/m 3 2/m) : Im3m
1.56RheniumReHex.
1.57IronFeIso. m3m (4/m 3 2/m) : Im3m
1.58ChromferideFe3Cr1-x (x=0.6)Iso. m3m (4/m 3 2/m) : Pm3m
1.59FerchromideCr3Fe1-xIso. m3m (4/m 3 2/m) : Pm3m
1.60WairauiteCoFe
1.61NickelNiIso. m3m (4/m 3 2/m) : Fm3m
1.62Kamacite(Fe,Ni)Iso.
1.63Taenite(Fe,Ni)Iso. m3m (4/m 3 2/m) : Fm3m
1.64TetrataeniteFeNiTet.
1.65AwaruiteNi3FeIso. m3m (4/m 3 2/m) : Fm3m
1.66Palladium(Pd,Pt)
1.68PaolovitePd2SnOrth.
1.69Stannopalladinite(Pd,Cu)3Sn2Hex.
1.70CabriitePd2CuSnOrth. mmm (2/m 2/m 2/m) : Pmmm
1.71Taimyrite(Pd,Cu,Pt)3SnOrth.
1.72Atokite(Pd,Pt)3SnIso. m3m (4/m 3 2/m) : Fm3m
1.73Rustenburgite(Pt,Pd)3Sn
1.74ZvyagintsevitePd3PbIso.
1.75PlumbopalladinitePd3Pb2Hex.
1.76Osmium(Os,Ir,Ru)Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.77Iridium(Ir,Os,Ru)Iso.
1.82PlatinumPtIso. m3m (4/m 3 2/m) : Fm3m
1.83HongshiitePtCuTrig.
1.84NiggliitePtSnHex.
1.85IsoferroplatinumPt3FeIso.
1.86TetraferroplatinumPtFeTet.
1.87TulameenitePt2CuFeTet.
1.88FerronickelplatinumPt2FeNiTet.
1.89Rhodium(Rh,Pt)Iso.

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 PotariteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
L. J. Spencer (1928): Potarite, a New Mineral Discovered by the Late Sir John Harrison in British Guiana. Mineralogical Magazine 21, 397-406.
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.: 105.
American Mineralogist (1960): 45: 1093-1097.
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 PotariteHide

Localities for PotariteHide

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
 
  • Western Australia
    • East Pilbara Shire
      • Rudall River District
Nickel, Ernest H. (2002): An Unusual Occurrence of Pd, Pt, Au, Ag, and Hg Mineralisation in the Pilbara Region of Western Australia. Canadian Mineralogist. 40: 419-433.
    • Roebourne Shire
      • Karratha
HOATSON,DM, WALLACE,DA, SUN,S-S, MACIAS,LF, SIMPSON,CJ and KEAYS,RR (1992) Petrology and platinum-group-element geochemistry of Archaean layered mafic-ultramafic intrusions, west Pilbara block, Western Australia. AGSO Bull. 242, 319pp. plus map.
Austria
 
  • Styria
    • Leoben
Min.& Pet. 73:247-277
Botswana
 
  • North-West District
    • Toteng
Piestrzynski, A., Wendorff, M., Letsholo, M. and Mackay, W. (2015). Platinum-group minerals in the Neoproterozoic stratabound copper-silver mineralisation, the Kalahari Copperbelt, Nortwestern Botswana. South African Journal of Geology, 118(3), 275-284.
Brazil
 
  • Minas Gerais
    • Serro (Serro Frio; Cerrado Frio)
Canadian Mineralogist: 40: 341-355; Cabral, Alexandre Raphael; Vymazalova, Anna; Lehmann, Bernd; Tupinamba, Miguel; Haloda, Jakub; Laufek, Frantisek; Vlcek, Vojtech; Kwitko-Ribeiro, Rogerio (2009): Poorly crystalline Pd-​Hg-​Au intermetallic compounds from Corrego Bom Sucesso, southern Serra do Espinhaco, Brazil. European Journal of Mineralogy 21, 811-816.
  • Pará
    • Carajás mineral province
      • Curionópolis
Teixeira, A. S. (2014). Geologia, petrologia e geocronologia do complexo acamadado lago grande: evidência para uma suíte magmática mineralizada a egp na província mineral de Carajás, Brasil.
Villas, R.N., and Dias Santos, M. (2001): Mineralium Deposita 36, 300-331
Canada
 
  • Québec
    • Chaudière-Appalaches
      • Les Appalaches RCM
http://gsa.confex.com/gsa/2001NE/finalprogram/abstract_2302.htm.
Guyana (TL)
 
  • Potaro-Siparuni Region
    • Kangaruma District
      • Potaro River
Bull.Soc.fr.Min.(1926) 49, 5
India
 
  • Odisha (Orissa)
Canadian Mineralogist 40:277-309
Japan
 
  • Honshu Island
    • Chugoku Region
      • Tottori Prefecture
Arai et al (1999) Mineralogical Magazine, 63, 369-377.
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Tazenakht
        • Bou Azzer District (Bou Azer District)
          • Bleida
El Ghorfi, M., Oberthür, T., Melcher, F., Lüders, V., El Boukhari, A., Maacha, L., Ziadi, R., and Baoutoul, H. (2006): Mineralium Deposita 41, 549-564.
New Caledonia
 
  • Southern Province
    • Mont-Dore Commune
      • Ouen Island
33rd International Geological Congress (2008) session MPM-04 Platinum-group mineralogy: Platinum-group minerals in chromitite schlieren from the ouen island, new caledonia ophiolite
Russia
 
  • Eastern-Siberian Region
    • 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.)
  • Urals Region
    • Middle Urals
9th International platinum symposium Chromite-PGE mineralization in the Uktus Alaskan-Type Complex (Central Urals,); Garuti, G., Pushkarev, E.V., and Zaccarini, F. (2002) Composition and paragenesis of Pt alloys from chromitites of the Uralian-Alaskan-type Kytlym and Uktus complexes, northern and central Urals, Russia. Canadian Mineralogist: 40: 1127-1146.
    • Southern Urals
      • Bashkortostan Republic (Bashkiria Republic)
F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).
South Africa
 
  • Limpopo Province
    • Bushveld Complex
The Canadian Mineralogist Vol. 43, pp. 1711-1734 (2005)
UK
 
  • Scotland
    • North West Highlands
      • Isle of Rum
Power, M.R., Pirrie, D., Andersen, J.C.O., and Butcher, A.R. (2000): Mineralium Deposita 35, 762-775.
USA
 
  • Alaska
    • Bethel Borough
      • Goodnews Bay
        • Salmon River - Red Mountain District
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
  • Montana
    • Stillwater Co.
      • Nye
        • Stillwater Complex
          • J-M Reef (Howland Reef)
www.cannonmicroprobe.com/Mineral_Specimens.htm
  • Nevada
    • Clark Co.
      • Spring Mts
        • Goodsprings District
NBMG Spec. Pub. 31 Minerals of Nevada
Zimbabwe
 
  • Masvingo
    • Chiredzi Mining District (Hartley Mining District)
Oberthür, T., Weiser, T. W., Gast, L., & Kojonen, K. (2003). Geochemistry and mineralogy of platinum-group elements at Hartley Platinum Mine, Zimbabwe. Mineralium Deposita, 38(3), 327-343.
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