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Potarite

A valid IMA mineral species - grandfathered
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EditAdd SynonymEdit CIF structuresClear Cache
PdHg
Colour:
Silver-white
Lustre:
Metallic, Sub-Metallic
Hardness:
3½
Specific Gravity:
14.88
Crystal System:
Tetragonal
Name:
For the type locality, the Potaro River, Guyana
Type Locality:
ⓘKaietur Falls, Rest of Region 8, Potaro-Siparuni Region, Guyana
CompareUM2004-06-E:AgCuHgPdTe.


Unique Identifiers
First published:
1928
Type description reference:
Spencer, L. J. (1928) Potarite, a new mineral discovered by the late Sir John Harrison in British Guiana.Mineralogical Magazine and Journal of the Mineralogical Society, 21 (120) 397-406doi:10.1180/minmag.1928.021.120.02

Classification of Potarite

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
Dana 8th ed.:
1.2.4.4

1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys
Hey's CIM Ref.:
1.67

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

Mineral Symbols
Transparency:
Opaque
Comment:
Frequently bright white, also gray-white
Colour:
Silver-white
Streak:
Silver white
Hardness:
3½ onMohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Density:
14.88 g/cm3 (Measured)    15.09 g/cm3 (Calculated)

Optical Data of Potarite
Common Impurities:
Cu

Crystallography of Potarite
General Appearance of Type Material:
White metallic nuggets, usually very rounded due to the mineral's low hardness, rarely shows small octahedral summits. May have fibrous to columnar texture.
Place of Conservation of Type Material:
1) The Natural History Museum, London, England, 1924,192, E238.
2) National Museum of Natural History, Washington, D.C., USA, 95350
Geological Setting of Type Material:
Placers
Associated Minerals at Type Locality:
DiamondNative PalladiumNative Platinum
Reference:
Spencer, L. J. (1928) Potarite, a new mineral discovered by the late Sir John Harrison in British Guiana.Mineralogical Magazine and Journal of the Mineralogical Society, 21 (120) 397-406doi:10.1180/minmag.1928.021.120.02

Other Language Names for Potarite

Common AssociatesHex. 6/mmm(6/m2/m2/m) :P63/mcm1.AD.05Native MercuryHgTrig.3m(32/m) :R3m1.AD.10BelendorffiteCu7Hg6Trig. 3m :R3m1.AD.10KolymiteCu7Hg6Iso.1.AD.15aParaschachneriteAg3Hg2Orth.1.AD.15cEugeniteAg11Hg2Iso.43m :I43m1.AD.15bLuanheiteAg3HgHex.1.AD.15aSchachneriteAg1.1Hg0.9Hex. 6/mmm(6/m2/m2/m) :P63/mmc1.AD.15dMoschellandsbergiteAg2Hg3Iso.m3m(4/m32/m)1.AD.20bGoldamalgam (of Chen et al.)(Au,Ag)HgIso.m3m(4/m32/m) :Im3m1.AD.20aWeishanite(Au,Ag,Hg)Hex. 6/mmm(6/m2/m2/m) :P63/mmc1.AD.20cYiyangiteAu3HgHex.1.AD.30LeadamalgamPb0.7Hg0.3Tet. 4/mmm(4/m2/m2/m) :I4/mmm1.AD.35ShosanbetsuiteAg3SnOrth.mmm(2/m2/m2/m) :Pmmn1.AD.40Unnamed (Au-Hg Amalgam)Au2HgHex. 6/mmm(6/m2/m2/m) :P63/mcm

Fluorescence of Potarite

Other Information
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    • References for PotariteⓘBulqiza Complex (Bulqiza Massif)12 (12)+1 other reference
    Australia
     
    HOATSON et al. (1992)Nickel (2002)
    Austria
     
    12 (12)+3 other referencesMalitch et al. (2002)
    Botswana
     
    Piestrzynski et al. (2015)
    Brazil
     
    Cornejo et al. (2009)Canadian Mineralogist: 40: 341-355.+11 other referencesTeixeira (2014)NetunoVillas et al. (2001)
    Canada
     
    Kawohl et al. (2020)gsa.confex.com (n.d.)
    Chile
     
    González-Jiménez et al. (2016)
    Egypt
     
    El Aref et al. (2020)
    France
     
    33rd International Geological Congress (2008)
    Germany
     
    Heider et al. (2022)
    Guyana (TL)
     
    Anonymous (1926)+1 other reference
    India
     
    Canadian Mineralogist 40:277-309
    Japan
     
    Arai et al. (1999)
    Morocco
     
    El Ghorfi et al. (2006)
    Russia
     
    Zaccarini et al. (2004)Rudashevskiy N.S. et al. (2003)+2 other referencesSpiridonov et al. (2019, April)Kislov+2 other references12 (12)+1 other referencePalyanova et al. (2023)Palyanova et al. (2023)Palyanova et al. (2023)Kiseleva et al. (2014)12 (12)+1 other referenceStepanov et al. (2023)Stepanov et al. (2023)Stepanov et al. (2019)+1 other referenceStepanov et al. (2019)Stepanov et al. (2020)Zaccarini et al. (2011)9th International platinum symposium Chromite-PGE mineralization in the Uktus Alaskan-Type Complex (Central Urals,)+2 other referencesShabutdinov et al. (2024)
    South Africa
     
    Melcher et al. (2005)Oberthür et al. (2018)Junge et al. (2014)
    Spain
     
    12 (12)+1 other reference
    Turkey
     
    Kozlu et al. (2010)
    UK
     
    Power et al. (2000)Prichard et al. (1988)+1 other reference12 (12)+1 other reference
    USA
     
    Anthony et al. (1990) ...Castor et al. (2004)
    Zimbabwe
     
    Oberthür et al. (2003)+1 other referenceOberthür et al. (2013)Oberthür et al. (2013)
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