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Eclarite

A valid IMA mineral species
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About EclariteHide

01861240015029707397853.jpg
Prof. Eberhard Clar
Formula:
(Cu,Fe)Pb9Bi12S28
Colour:
Whitish-grey
Lustre:
Metallic
Hardness:
2½ - 3½
Specific Gravity:
6.75 - 6.88
Crystal System:
Orthorhombic
Name:
Named for Prof. Eberhard Clar (23 Juli 1904 - 7 December 1995), Austrian geologist who worked at the technical high school in Graz and the University of Vienna, Austria.
This page provides mineralogical data about Eclarite.


Unique IdentifiersHide

Mindat ID:
1349
Long-form identifier:
mindat:1:1:1349:5
GUID
(UUID V4):
5efb5c43-36f7-4a26-a88e-cbd7d547516b

IMA Classification of EclariteHide

Classification of EclariteHide

2.HB.10c

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
3.6.10.1

3 : SULFOSALTS
6 : 2 < Ăž < 2.49
5.7.19

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
EclIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
EclThe 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 EclariteHide

Metallic
Transparency:
Opaque
Colour:
Whitish-grey
Streak:
Lead grey
Hardness:
2½ - 3½ on Mohs scale
Hardness:
VHN50=87 - 191 kg/mm2 - Vickers
Comment:
traverse hardness less than longitudinal hardness
Cleavage:
Distinct/Good
Distinct on {010}
poor on {0kl}
Density:
6.75 - 6.88 g/cm3 (Measured)    

Optical Data of EclariteHide

Anisotropism:
Distinct in air, strong in oil
Reflectivity:
WavelengthR1R2
480nm45.2%51.2%
546nm42.9%47.2%
589nm42.0%46.1%
644nm40.2%45.0%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 51.2%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Whitish gray; oil - bluish gray
Pleochroism:
Visible

Chemistry of EclariteHide

Mindat Formula:
(Cu,Fe)Pb9Bi12S28
Common Impurities:
Ag,Sb

Chemical AnalysisHide

wt%
 1
Cu1.75 %
Ag0.27 %
Fe0.11 %
Pb30.64 %
Bi49.88 %
Sb0.55 %
S16.76 %
Total:99.96 %
Empirical formulas:
Sample IDEmpirical Formula
1Cu1.46Fe0.10Ag0.13Pb7.82Bi12.64Sb0.24S27.69

Crystallography of EclariteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 54.76(4) Å, b = 4.030(3) Å, c = 22.75(3) Å
Ratio:
a:b:c = 13.588 : 1 : 5.645
Unit Cell V:
5,020.53 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Fan shaped aggregates of acicular crystals, prismatic; granular.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0019708EclariteTopa D, Makovicky E (2012) Eclarite: New data and interpretations The Canadian Mineralogist 50 371-3862012Felbertal, Salzburg Province, Austria0293
0015698EclariteKupcik V (1984) Die kristallstruktur des minerals eclarit, (Cu,Fe)Pb9Bi12S28 Tschermaks Mineralogische und Petrographische Mitteilungen 32 259-26919840293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.414 Å(100)
2.014 Å(80)
2.893 Å(70)
3.010 Å(60)
2.141 Å(50)
2.037 Å(45)
3.488 Å(40)

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of EclariteHide

General Appearance of Type Material:
Fan-shaped aggregates of needle-like crystals up to 1.5 cm long, or as granular fracture-fillings in pyrite and arsenopyrite.
Place of Conservation of Type Material:
Institute for Geosciences (Mineralogy), University of Salzburg, Salzburg, Austria.
Mineralogical-Crystallographical Institute, University of Gottingen, Gottingen, Germany.
The Natural History Museum, London, England, 1982,573.
Royal Ontario Museum, Toronto, Canada.
National Museum of Natural History, Washington, D.C., USA, 150482.
Geological Setting of Type Material:
Gold bearing sulfide copper ores in quartz veins.
Associated Minerals at Type Locality:
Reference:
Paar, W.H., Chen, T.T., Kupcik, V., Hanke, K. (1983) Eclarit, (Cu,Fe)Pb9Bi12S28, ein neues Sulfosalz von BĂ€renbad, Hollersbachtal, Salzburg, Österreich. Tschermaks Mineralogische und Petrographische Mitteilungen: 32: 103-110.

Synonyms of EclariteHide

Other Language Names for EclariteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
8 photos of Eclarite associated with QuartzSiO2
7 photos of Eclarite associated with ChalcopyriteCuFeS2
1 photo of Eclarite associated with CannoniteBi2(SO4)O(OH)2
1 photo of Eclarite associated with AnglesitePbSO4
1 photo of Eclarite associated with PyriteFeS2

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.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.05cJaskĂłlskiiteCuxPb2+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.05aPekoitePbCuBi11S18Orth. mm2
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.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.20aNagyĂĄgite[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 EclariteHide

References for EclariteHide

Localities for EclariteHide

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.
Austria (TL)
 
  • Salzburg
    • Zell am See District
      • Hollersbach im Pinzgau
        • Scharnbachgraben
China
 
  • Guangxi
    • Hechi
      • Nandan County
        • Dachang Sn-polymetallic ore field
Czech Republic
 
  • Vysočina Region
    • HavlíčkĆŻv Brod District
      • Pohled
Finland
 
  • South Ostrobothnia
    • SeinĂ€joki
      • PerĂ€seinĂ€joki
India
 
  • Madhya Pradesh
    • Katni district
Japan
 
  • Iwate Prefecture
    • Oshu City
      • Esashi ward
        • Akagane mine
Norway
 
  • Vestfold og Telemark
    • Seljord
      • Svartdal
Romania
 
  • CaraƟ-Severin County
  • Maramureș County
    • Borșa
Slovakia
 
  • BanskĂĄ Bystrica Region
    • Brezno District
      • BystrĂĄ
    • RimavskĂĄ Sobota District
Switzerland
 
  • Valais
    • Leuk
      • Turtmann-Unterems
        • Turtmann Valley
          • BlĂŒomatttĂ€lli
    • Sierre
      • Anniviers
        • Ayer
        • Saint-Luc
USA
 
  • Arizona
    • Cochise County
      • Middle Pass Mining District
        • Cochise Stronghold
  • North Carolina
    • Wake County
      • Raleigh
 
Mineral and/or Locality  
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