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Potarite

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About PotariteHide

01169360015804232128555.jpg
Potaro River, Guyana
Formula:
PdHg
Colour:
Silver-white
Lustre:
Metallic
Hardness:
Specific Gravity:
14.88
Crystal System:
Tetragonal
Name:
For the type locality, the Potaro River, Guyana

Classification of PotariteHide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
1928
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

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.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005246PotariteBayliss P (1990) Revised unit cell dimensions, space group, and chemical formula of some metallic minerals The Canadian Mineralogist 28 751-75519900293
CIF Raw Data - click here to close

Geological EnvironmentHide

Geological Setting:
Associated with platinum minerals in placers.

Type Occurrence of PotariteHide

Place of Conservation of Type Material:
Smithsonian 95350
Reference:
Spencer, L.J. (1928) Potarite, a New Mineral Discovered by the Late Sir John Harrison in British Guiana. Mineralogical Magazine: 21: 397-406.

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:
1 photo of Potarite associated with Palladium(Pd,Pt)
1 photo of Potarite associated with PlatinumPt

Related Minerals - Nickel-Strunz GroupingHide

1.AD.AurihydrargyrumiteAu6Hg5Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
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,Hg)Hex. 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,Hg)Hex. 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
1.28SiliconSiIso. m3m (4/m 3 2/m) : Fd3m
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.
1.40KutinaiteAg6Cu14As7Iso.
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
1.54TelluriumTeTrig. 3 2 : P31 2 1
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
1.60WairauiteCoFeIso.
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)Iso. m3m (4/m 3 2/m) : Fm3m
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)3SnIso. m3m (4/m 3 2/m) : Fm3m
1.74ZvyagintsevitePd3PbIso. m3m (4/m 3 2/m) : Pm3n
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)
Spencer, L.J. (1928) Potarite, a New Mineral Discovered by the Late Sir John Harrison in British Guiana. Mineralogical Magazine: 21: 397-406.
Foshag, W.F. (1928) New mineral names. American Mineralogist: 13: 201-202.
Foshag, W.F. (1928) New mineral names. American Mineralogist: 13: 491-494.
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.
Terada, K., Cagle, F.W. (1960) The crystal structure of potarite (PdHg) with some comments on allopalladium. American Mineralogist: 45: 1093-1097.
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.
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. The 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 District
Min.& Pet. 73:247-277
      • Sankt Stefan ob Leoben
        • Mitterberg
Malitch, K. N., & Knauf, V. V. (2002). Diversity of PGM assemblages at Kraubath: a case study of mantle-derived chromitites from the Eastern Alps, Austria. In 9th International Platinum Symposium (Abstracts).
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.
France
 
  • New Caledonia
    • Southern Province
      • Mont Dore
        • 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
Guyana (TL)
 
  • Potaro-Siparuni Region
    • Kangaruma District
      • Potaro River
Bull.Soc.fr.Min.(1926) 49, 5
India
 
  • Odisha
    • Keonjhar District
Canadian Mineralogist 40:277-309
Japan
 
  • Tottori Prefecture
    • Hino District
      • Nichinan
Arai et al (1999) Mineralogical Magazine, 63, 369-377.
Morocco
 
  • Drâa-Tafilalet Region
    • Zagora Province
      • 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.
Russia
 
  • Bashkortostan
F. Zaccarini et al. , The Canadian Mineralogist, Vol. 42, pp. 545-562 (2004).
  • Sayan Mountains
Kiseleva, O. N., Zhmodik, S. M., Damdinov, B. B., Agafonov, L. V., & Belyanin, D. K. (2014). Composition and evolution of PGE mineralization in chromite ores from the Il’chir ophiolite complex (Ospa–Kitoi and Khara-Nur areas, East Sayan). Russian Geology and Geophysics, 55(2), 259-272.
  • Sverdlovsk Oblast
    • Novolyalinsky District
      • Kytlym complex (Kytlym massif)
Zaccarini, F., Garuti, G., & Pushkarev, E. V. (2010) Unusual PGE-Rich Chromitite in the “Butyrin-Veins” of the Kytlym Ural-Alaskan Complex (Northern Urals). 11th International Platinum Symposium. Ontario Geological Survey, Miscellaneous Release–Data 269
    • Yekaterinburg
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.; Zaccarini, F., Pushkarev, E., Garuti, G., Krause, J., Dvornik, G. P., Stanley, C., & Bindi, L. (2013). Platinum-group minerals (PGM) nuggets from alluvial-eluvial placer deposits in the concentrically zoned mafic-ultramafic Uktus complex (Central Urals, Russia). European Journal of Mineralogy, 25(4), 519-531.
  • Zabaykalsky Krai
    • 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.); Spiridonov, E. M., Orsoev, D. A., Ariskin, A. A., Kislov, E. V., Korotaeva, N. N., Nikolaev, G. S., & Yapaskurt, V. O. (2019). Germanium-Rich Palladium Minerals Palladogermanide Pd 2 Ge, Paolovite Pd 2 (Sn, Ge), and Zvyagintsevite in Sulfide-Bearing Anorthosites of the Yoko-Dovyren Pluton, Baikal Area. Geochemistry International, 57(5), 600-603.
Spiridonov, E. M., Orsoev, D. A., Ariskin, A. A., Kislov, E. V., Korotaeva, N. N., Nikolaev, G. S., & Yapaskurt, V. O. (2019, April). Palladogermanide PdGe 2 from Sulfidized Anorthosite of the Yoko-Dovyren Intrusion: First Finding in Russia. In Doklady Earth Sciences (Vol. 485, No. 2, pp. 458-460). Pleiades Publishing.
South Africa
 
  • Limpopo
    • Sekhukhune District
      • Burgersfort
The Canadian Mineralogist Vol. 43, pp. 1711-1734 (2005)
    • Waterberg District
      • Naboomspruit (Mookgophong)
Oberthür, T., Melcher, F., Fusswinkel, T., van den Kerkhof, A. M., & Sosa, G. M. (2018). The hydrothermal Waterberg platinum deposit, Mookgophong (Naboomspruit), South Africa. Part 1: Geochemistry and ore mineralogy. Mineralogical Magazine, 82(3), 725-749.
  • North West
    • Bojanala Platinum District
      • Rustenburg (Rustenburg District)
Junge, M., Oberthür, T., & Melcher, F. (2014). Cryptic variation of chromite chemistry, platinum group element and platinum group mineral distribution in the UG-2 chromitite: an example from the Karee Mine, western Bushveld Complex, South Africa. Economic Geology, 109(3), 795-810.
Turkey
 
  • Hatay Province
    • Arsuz
Kozlu, H., & Rudashevsky, N. V. (2010). Geochemistry of the platinum-group minerals (PGM) in the chromitites from Elbistan–Berit Mantle/Transition Zone and Kızıldağ (Hatay) Ophiolite, SE–S Turkey. In 11th International Platinum Symposium Ontario Geological Survey, Pdf Abstract Miscellaneous Release-Data (Vol. 269).
UK
 
  • Scotland
    • Highland
      • Isle of Rum
Power, M.R., Pirrie, D., Andersen, J.C.O., and Butcher, A.R. (2000): Mineralium Deposita 35, 762-775.
    • Shetland
      • Unst
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.; O’Driscoll, B., Garwood, R., Day, J. M., & Wogelius, R. (2018). Platinum-group element remobilization and concentration in the Cliff chromitites of the Shetland Ophiolite Complex, Scotland. Mineralogical Magazine, 82(3), 471-490.
USA
 
  • Alaska
    • Bethel Census Area
      • Goodnews Bay
        • Salmon River - Red Mountain District
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
  • Montana
    • Stillwater Co.
      • J-M Reef (Howland Reef)
www.cannonmicroprobe.com/Mineral_Specimens.htm
  • Nevada
    • Clark Co.
      • Spring Mountains
        • Goodsprings Mining 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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