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Pekoite

A valid IMA mineral species
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About PekoiteHide

Formula:
PbCuBi11S18
May contain minor Se replacing S.
Colour:
lead-grey
Lustre:
Metallic
Hardness:
2 - 3
Specific Gravity:
6.8 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in 1976 by W.G. Mumme and J.A. Watts for the Peko Mine, Australia, one of the first in the Tennant Creek gold field. Note that the type locality is not the Peko Mine, but rather the Juno Mine, a couple kilometers distant.

Unique IdentifiersHide

Mindat ID:
3144
Long-form identifier:
mindat:1:1:3144:4
GUID
(UUID V4):
72ea669f-fb52-4564-b587-d636e142408d

IMA Classification of PekoiteHide

Classification of PekoiteHide

2.HB.05a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
B : With Cu, Ag, Fe, Sn and Pb
3.4.5.6

3 : SULFOSALTS
4 : ø = 3
5.7.17

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals

Mineral SymbolsHide

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.

SymbolSourceReference
PekIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
PekThe 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 PekoiteHide

Metallic
Transparency:
Opaque
Colour:
lead-grey
Streak:
lead-grey
Hardness:
2 - 3 on Mohs scale
Cleavage:
Distinct/Good
{010}
Density:
6.8 g/cm3 (Calculated)

Chemistry of PekoiteHide

Mindat Formula:
PbCuBi11S18

May contain minor Se replacing S.
Common Impurities:
Ag,Fe

Crystallography of PekoiteHide

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Cell Parameters:
a = 11.472(2) Å, b = 33.744(6) Å, c = 4.016(1) Å
Ratio:
a:b:c = 0.34 : 1 : 0.119
Unit Cell V:
1,554.64 ų (Calculated from Unit Cell)
Z:
2
Comment:
Space Group: P21am.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005123PekoiteMumme W G, Watts J A (1976) Pekoite, CuPbBi11S18, a new member of the bismuthinite-alkinite mineral series: its crystal structure and relationship with naturally- and synthetically-formed members The Canadian Mineralogist 14 322-33319760293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.140 Å(100)
3.025 Å(40)
3.622 Å(30)
1.971 Å(30)
3.564 Å(25)
3.593 Å(20)
2.554 Å(20)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of PekoiteHide

General Appearance of Type Material:
Crystals are prismatic, to 2 mm; in banded exsolution intergrowths epitaxial with gladite
Place of Conservation of Type Material:
Geology Department, University of New England, Australia, R27788.
Associated Minerals at Type Locality:
Reference:
Mumme, W.G. and Watts, J.A. (1976) Pekoite, CuPbBi11S18, a new member of the bismuthinite-aikinite mineral series: its crystal structure and relationship with naturally- and synthetically-formed members. Canadian Mineralogist (1976): 14: 322-333.

Synonyms of PekoiteHide

Other Language Names for PekoiteHide

German:Pekoit
Russian:Пекоит
Simplified Chinese:硒铋铜铅矿
Spanish:Pekoita

Common AssociatesHide

Associated Minerals Based on Photo Data:
7 photos of Pekoite associated with GladitePbCuBi5S9
4 photos of Pekoite associated with QuartzSiO2
3 photos of Pekoite associated with ChalcopyriteCuFeS2
2 photos of Pekoite associated with KrupkaitePbCuBi3S6
1 photo of Pekoite associated with GoldAu
1 photo of Pekoite associated with Bismutite(BiO)2CO3

Related Minerals - Strunz-mindat GroupingHide

2.HB.BarikaiteAg3Pb10(Sb8As11)S40Mon. 2/m : P21/b
2.HB.Carducciite(Ag2Sb2)Pb12(As,Sb)16S40Mon. 2/m : P21/b
2.HB.SardashtiteAg9Cu2.5Pb41Sb36.5As7S112Mon. 2/m
2.HB.InterliveingiteAgPb18As25S56Mon. 2 : P21
2.HB.ReckibachiteAg2Pb12As14Sb4S40Mon. 2/m : P21/b
2.HB.05aAikinitePbCuBiS3Orth. mmm (2/m 2/m 2/m) : Pnma
2.HB.05aFriedrichitePb5Cu5Bi7S18Orth. mm2
2.HB.05aGladitePbCuBi5S9Orth. mmm (2/m 2/m 2/m)
2.HB.05aHammaritePb2Cu2Bi4S9Orth.
2.HB.05cJaskólskiiteCuxPb2+x(Sb,Bi)2-xS5 (x ~ 0.15)Orth. mmm (2/m 2/m 2/m)
2.HB.05aKrupkaitePbCuBi3S6Orth. mm2
2.HB.05aLindströmitePb3Cu3Bi7S15Orth. mmm (2/m 2/m 2/m)
2.HB.05bMeneghinitePb13CuSb7S24Orth. mmm (2/m 2/m 2/m)
2.HB.05aEmilitePb2.7Cu2.7Bi5.3S12Orth. mm2 : Pmc21
2.HB.05UM2000-46-S:BiCuPbCu0.33Pb0.33Bi7.67S12
2.HB.05aSalzburgitePb1.6Cu1.6Bi6.4S12Orth. mm2 : Pmc21
2.HB.05UM1990-54-Se:BiCuPbCuPb(Ni,Co)0.3Bi3Se6
2.HB.05aPaaritePb1.7Cu1.7Bi6.3S12Orth. mmm (2/m 2/m 2/m) : Pbcn
2.HB.10cEclarite(Cu,Fe)Pb9Bi12S28Orth. mmm (2/m 2/m 2/m) : Pnma
2.HB.10bGiessenitePb27Cu2(Bi,Sb)19S57Mon. 2/m
2.HB.10bIzoklakeitePb27(Cu,Fe,Ag)2(Sb,Bi)19S57Orth. mmm (2/m 2/m 2/m) : Pnnm
2.HB.10aKobellitePb22Cu4(Bi,Sb)30S69Orth. mmm (2/m 2/m 2/m) : Pnnm
2.HB.10aTintinaitePb22Cu4(Sb,Bi)30S69Orth. mmm (2/m 2/m 2/m) : Pnnm
2.HB.15BenavidesitePb4MnSb6S14Mon. 2/m : P21/b
2.HB.15JamesonitePb4FeSb6S14Mon. 2/m : P21/b
2.HB.20dBerryiteCu3Ag2Pb3Bi7S16Mon. 2/m : P21/m
2.HB.20bBuckhorniteAuPb2BiTe2S3Orth. mmm (2/m 2/m 2/m) : Pmmm
2.HB.20aNagyágite[Pb3(Pb,Sb)3S6](Au,Te)3Mon. 2/m : P21/m
2.HB.20eWatkinsoniteCu2PbBi4(Se,S,Te)8Mon. 2/m : P21/m
2.HB.20cMuseumite[Pb2(Pb,Sb)2S8][(Te,Au)2]Mon. 2
2.HB.20eLitochlebiteAg2PbBi4Se8Mon. 2/m : P21/m
2.HB.20bJaszczakite[Bi3S3][AuS2]Orth. mmm (2/m 2/m 2/m) : Pmmn
2.HB.20eLuxembourgiteAgCuPbBi4Se8Mon. 2/m : P21/m
2.HB.25Meerschautite(Ag,Cu)6Pb43-2xSb44+2xS112Ox (x ~0.5)Mon. 2 : P21

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.

Internet Links for PekoiteHide

References for PekoiteHide

Reference List:

Localities for PekoiteHide

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 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.
Australia (TL)
 
  • Northern Territory
    • Barkly Region
      • Tennant Creek
AM 1976 +1 other reference
  • Queensland
    • Charters Towers Region
Wormald (1993)
  • Western Australia
    • Kalgoorlie-Boulder Shire
      • Kalgoorlie-Boulder
Mueller +3 other references
Austria
 
  • Carinthia
    • Spittal an der Drau District
      • Flattach
        • Wurten
          • Alteck
Niedermayr et al. (1995)
Pichler (2009)
      • Großkirchheim
        • Zirknitz
          • Kleine Zirknitz valley
            • Kluidscharte
Paar et al. (1982) +1 other reference
  • Salzburg
    • Zell am See District
      • Mittersill
        • Mittersill Scheelite deposit
Strasser (1989)
Brazil
 
  • Rio Grande do Norte
    • Currais Novos
Bulgaria
 
  • Burgas Province
    • Burgas Municipality
      • Burgas
Kolkovski B et al. (2003)
  • Plovdiv Province
    • Asenovgrad Municipality
Birch et al. (1985)
  • Sofia Province
    • Etropole Municipality
www.bgd.bg (n.d.) +1 other reference
Canada
 
  • Manitoba
    • Lac-du-Bonnet area
      • Bernic Lake
Richard Gunter specimen +3 other references
China
 
  • Jiangsu
    • Nanjing
      • Jiangning District
Xiangping et al. (2001)
France
 
  • Corsica
    • Corse-du-Sud
      • Sartène
        • Figari
          • Testa
Lheur et al. (2011)
Greece
 
  • Eastern Macedonia and Thrace
    • Xanthi
      • Xanthi
Voudouris et al. (2018, July)
  • South Aegean
    • Milos
      • Serifos Island
Korosidis et al. (2022, March)
Hungary
 
  • Fejér County
    • Székesfehérvár District
      • Pátka
collector: László Tóth +1 other reference
Italy
 
  • Lombardy
    • Sondrio Province
      • Chiesa in Valmalenco
Bedognè et al. (1993)
Lapis (10)
  • Sardinia
    • South Sardinia Province
      • Nuxis
Deidda et al. (2022)
Deidda et al. (2022)
Japan
 
  • Yamagata Prefecture
Izumino et al. (2014)
Kazakhstan
 
  • Karaganda Region
    • Shet District
      • Akshatau (Aqshatau)
Efimov A.V. Bismuthian mineralisation ...
Morocco
 
  • Marrakesh-Safi Region
    • Al Haouz Province
      • Asni Cercle
        • Tichka Massif
Paar et al. (2006)
Norway
 
  • Nordland
    • Sørfold
Husdal et al. (2020)
Poland
 
  • Lower Silesian Voivodeship
    • Karkonosze County
      • Szklarska Poręba
Pieczka et al. (2012) +2 other references
Romania
 
  • Bihor County
    • Nucet
Anthony et al. (1990)
Shimizu et al. (1998)
Shimizu et al. (1998)
  • Caraş-Severin County
Singer et al. (2008)
  • Maramureș County
    • Băiuț
Cook +1 other reference
    • Tăuții-Măgherăuș
      • Aurum
Plotinskaya et al. (2009)
Russia
 
  • Chelyabinsk Oblast
    • Kaslinsky District
Rogov et al. (2023)
Rogov et al. (2023)
  • Republic of Karelia
    • Pitkyarantsky District
      • Pitkyaranta
Ivashchenko et al. (2011, September)
Slovakia
 
  • Banská Bystrica Region
    • Banská Bystrica District
      • Ľubietová
Pršek J.
    • Brezno District
Pršek J. (Kandid. Diz.práca)
      • Bystrá
Pršek et al. (2008)
  • Košice Region
    • Spišská Nová Ves District
Pršek J. (Kandid. dizert. práca)
  • Žilina Region
    • Liptovský Mikuláš District
      • Liptovské Kľačany
Bakoš
Ozdin D.
Ozdín D. (2003)
Sweden
 
  • Dalarna County
    • Falun
Switzerland
 
  • Grisons
    • Maloja Region
      • Bregaglia
        • Upper Val Bregaglia
          • Albigna Valley
Schweizer Strahler
  • Valais
    • Sierre
      • Anniviers
        • Saint-Luc
Stalder et al. (1998) +1 other reference
UK
 
  • Scotland
    • Highland
      • North, West and Central Sutherland
        • Loch Shin
Lowry et al. (1994)
USA
 
  • Alaska
    • Bethel Census Area
      • Aniak Mining District
- (2008)
  • Arizona
    • Cochise County
      • Dos Cabezas Mountains
        • Dos Cabezas Mining District (Two Heads Mining District)
Anthony et al. (1995)
Anthony et al. (1995)
  • Washington
    • Snohomish County
      • Sultan Mining District
        • North Fork of the Sultan River
...
    • Stevens County
      • Springdale Mining District
Mineralogical Society of America - ...
Uzbekistan
 
  • Tashkent Region
    • Ohangaron District
Anthony et al. (1990) +1 other reference
 
Mineral and/or Locality  
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