close
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Eclarite

A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
00350930017581564957488.jpg
Eclarite

Bärenbad Mine, Scharnbachgraben, Hollersbach im Pinzgau, Zell am See District, Salzburg, Austria
05816150017272002148184.jpg
Eclarite

Jishakuyama orebody, Akagane mine, Esashi ward, Oshu City, Iwate Prefecture, Japan
09270980017581564959896.jpg
Eclarite

Bärenbad Mine, Scharnbachgraben, Hollersbach im Pinzgau, Zell am See District, Salzburg, Austria
00350930017581564957488.jpg
Eclarite

Bärenbad Mine, Scharnbachgraben, Hollersbach im Pinzgau, Zell am See District, Salzburg, Austria
05816150017272002148184.jpg
Eclarite

Jishakuyama orebody, Akagane mine, Esashi ward, Oshu City, Iwate Prefecture, Japan
09270980017581564959896.jpg
Eclarite

Bärenbad Mine, Scharnbachgraben, Hollersbach im Pinzgau, Zell am See District, Salzburg, Austria
00350930017581564957488.jpg
Eclarite

Bärenbad Mine, Scharnbachgraben, Hollersbach im Pinzgau, Zell am See District, Salzburg, Austria
00639040017272002288884.jpg
Eclarite

Jishakuyama orebody, Akagane mine, Esashi ward, Oshu City, Iwate Prefecture, Japan
Hide all sections | Show all sections

About EclariteHide

06350870017271922729545.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

Similar NamesHide

Clarite (of Sandberger)A synonym of EnargiteCu3AsS4
SclariteA valid IMA mineral speciesZn7(CO3)2(OH)10

IMA Classification of EclariteHide

Classification of EclariteHide

Strunz-mindat (2026):
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
Dana 8th ed.:
3.6.10.1

3 : SULFOSALTS
6 : 2 < ø < 2.49
Hey's CIM Ref.:
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 for Standard
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

Lustre:
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:
WavelengthR1 (%)R2 (%)
480nm45.2%51.2%
546nm42.9%47.2%
589nm42.0%46.1%
644nm40.2%45.0%


Graph shows reflectance levels at different wavelengths (in nm). 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
Element Weights:
Element% weight
Bi47.015 %
Pb34.961 %
S16.832 %
Cu1.191 %

Calculated from ideal end-member formula.
Elements listed:
Bi, Cu, Fe, Pb, S - search for minerals with similar chemistry
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
Sample references:
IDLocalityReferenceNotes
1Blika gold mine, Svartdal, Seljord, Telemark, Norway
Larsen, Alf Olav, Topa, Dan (2015) Eclarite from Bleka, Svartdal, Telemark county, Norway. Norsk Mineralsymposium 2015, 65-68
Electron microprobe. The empirical formula is based on 20.85 large cations.

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

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
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):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of EclariteHide

Type Locality:
ⓘ Bärenbad Mine, Scharnbachgraben, Hollersbach im Pinzgau, Zell am See District, Salzburg, Austria
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:
ArsenopyriteNative BismuthChalcopyriteNative GoldPyrite
PyrrhotiteQuartzSphaleriteStannite
Reference:
Paar, W. H., Chen, T. T., Kupcik, V., Hanke, U., Paar, W. H., Chen, T. T., Kupcik, V., Hanke, U. (1983) Eclarit, (Cu,Fe)Pb9Bi12S28, ein neues Sulfosalz von Bärenbad, Hollersbachtal, Salzburg, Österreich. TMPM Tschermaks Mineralogische und Petrographische Mitteilungen, 32 (2). 103-110 doi:10.1007/bf01081104

Synonyms of EclariteHide

Other Language Names for EclariteHide

Common AssociatesHide

Associations Based on Photo Data:
34 photos of Eclarite associated with QuartzSiO2
23 photos of Eclarite associated with ChalcopyriteCuFeS2
15 photos of Eclarite associated with Native BismuthBi
10 photos of Eclarite associated with TetradymiteBi2Te2S
10 photos of Eclarite associated with GoethiteFe3+O(OH)
8 photos of Eclarite associated with AnkeriteCa(Fe2+,Mg)(CO3)2
6 photos of Eclarite associated with ArsenopyriteFeAsS
4 photos of Eclarite associated with PyriteFeS2
1 photo of Eclarite associated with CannoniteBi2(SO4)O(OH)2
1 photo of Eclarite associated with AnglesitePbSO4

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.05aSalzburgiteCu1.6Pb1.6Bi6.4S12Orth. mm2 : Pmc21
2.HB.05aHammariteCu2Pb2Bi4S9Orth.
2.HB.05cJaskĂłlskiiteCuxPb2+x(Sb,Bi)2-xS5 (x ~ 0.15)Orth. mmm (2/m 2/m 2/m)
2.HB.05'UM1990-54-Se:BiCuPb'CuPb(Ni,Co)0.3Bi3Se6
2.HB.05aAikiniteCuPbBiS3Orth. mmm (2/m 2/m 2/m) : Pnma
2.HB.05aPekoiteCuPbBi11S18Orth. mm2
2.HB.05aFriedrichiteCu5Pb5Bi7S18Orth. mm2
2.HB.05bMeneghinitePb13CuSb7S24Orth. mmm (2/m 2/m 2/m)
2.HB.05aPaariteCu1.7Pb1.7Bi6.3S12Orth. mmm (2/m 2/m 2/m) : Pbcn
2.HB.05aLindstrĂśmiteCu3Pb3Bi7S15Orth. mmm (2/m 2/m 2/m)
2.HB.05aEmiliteCu10.7Pb10.7Bi21.3S48Orth. mm2 : Pmc21
2.HB.05aGladiteCuPbBi5S9Orth. mmm (2/m 2/m 2/m)
2.HB.05aKrupkaiteCuPbBi3S6Orth. mm2
2.HB.05'UM2000-46-S:BiCuPb'Cu0.33Pb0.33Bi7.67S12
2.HB.10bIzoklakeitePb27(Cu,Fe,Ag)2(Sb,Bi)19S57Orth. mmm (2/m 2/m 2/m) : Pnnm
2.HB.10aTintinaitePb22Cu4(Sb,Bi)30S69Orth. mmm (2/m 2/m 2/m) : Pnnm
2.HB.10bGiessenitePb27Cu2(Bi,Sb)19S57Mon. 2/m
2.HB.10aKobellitePb22Cu4(Bi,Sb)30S69Orth. mmm (2/m 2/m 2/m) : Pnnm
2.HB.15JamesonitePb4FeSb6S14Mon. 2/m : P21/b
2.HB.15BenavidesitePb4MnSb6S14Mon. 2/m : P21/b
2.HB.20aNagyĂĄgite[Pb3(Pb,Sb)3S6](Au,Te)3Mon. 2/m : P21/m
2.HB.20bBuckhorniteAuPb2BiTe2S3Orth. mmm (2/m 2/m 2/m) : Pmmm
2.HB.20eLuxembourgiteAgCuPbBi4Se8Mon. 2/m : P21/m
2.HB.20bJaszczakite[Bi3S3][AuS2]Orth. mmm (2/m 2/m 2/m) : Pmmn
2.HB.20dBerryiteCu3Ag2Pb3Bi7S16Mon. 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.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

Showing 18 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the Image symbol to view information about a locality. The Image symbol next to localities in the list can be used to jump to that position on the map.
Hide all sections | Show all sections

Locality ListHide

Image - This locality has map coordinates listed. Image - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. Image - Good crystals or important locality for species. Image - 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
Paar et al. (1983) +1 other reference
China
 
  • Guangxi
    • Hechi
      • Nandan County
Yingchen Ren (1999)
Czech Republic
 
  • Vysočina Region
    • HavlíčkĹŻv Brod District
      • Pohled
Dolníček et al. (2021)
Finland
 
  • South Ostrobothnia
    • Seinäjoki
      • Peräseinäjoki
Tuovinen Lauri
India
 
  • Madhya Pradesh
    • Katni district
Tripathi et al. (2022)
Japan
 
  • Iwate Prefecture
    • Oshu City
      • Esashi ward
        • Akagane mine
Harada et al. (2016) +1 other reference
Norway
 
  • Telemark
    • Seljord
      • Svartdal
Larsen et al. (2015)
Romania
 
  • Caraş-Severin County
minerals-of-the-carpathians.eu (2008)
  • Maramureș County
    • Borșa
Cook (1998)
Slovakia
 
  • BanskĂĄ Bystrica Region
    • Brezno District
      • BystrĂĄ
PrĹĄek et al. (2008)
  • KoĹĄice Region
    • KoĹĄice-okolie District
      • Medzev
Martin Ĺ tevko-unpublished
Switzerland
 
  • Valais
    • Leuk
      • Turtmann-Unterems
        • Turtmann Valley
          • BlĂźomatttälli
Ansermet (2012)
Ansermet (2012)
    • Sierre
      • Anniviers
        • Ayer
Stalder et al. (1998) +1 other reference
        • Saint-Luc
Ansermet (2012)
USA
 
  • Arizona
    • Cochise County
      • Middle Pass Mining District
        • Cochise Stronghold
Anthony et al. (1995)
Anthony et al. (1995)
  • North Carolina
    • Wake County
      • Raleigh
RRUFF database -Specimen I.D No. R110124
Quick NavTopAbout EclariteUnique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Chemical AnalysisCrystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
 
Image Image
and/or  
Mindat.orgÂŽ is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. MindatÂŽ and mindat.orgÂŽ are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are Š OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 21, 2026 23:12:05 Page updated: April 22, 2026 07:14:12
Go to top of page