Eclarite (original) (raw)

A valid IMA mineral species

About EclariteHide

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Formula:

(Cu,Fe)Pb9Bi12S28

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

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Long-form identifier:

mindat:1:1:1349:5

5efb5c43-36f7-4a26-a88e-cbd7d547516b

IMA Classification of EclariteHide

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Type description reference:

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

Classification of EclariteHide

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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 < ø < 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

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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.

Physical Properties of EclariteHide

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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

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Anisotropism:

Distinct in air, strong in oil

Reflectivity:

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

Chemistry of EclariteHide

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Mindat Formula:

(Cu,Fe)Pb9Bi12S28

Chemical AnalysisHide

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Empirical formulas:

Sample references:

Crystallography of EclariteHide

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Crystal System:

Orthorhombic

Class (H-M):

m m m _(_2/_m_2/_m_2/m ) - Dipyramidal

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)

Morphology:

Fan shaped aggregates of acicular crystals, prismatic; granular.

Crystal StructureHide

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CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of EclariteHide

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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 Bärenbad, Hollersbachtal, Salzburg, Österreich. Tschermaks Mineralogische und Petrographische Mitteilungen: 32: 103-110.

Synonyms of EclariteHide

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Other Language Names for EclariteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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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

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References for EclariteHide

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Reference List:

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

**Dunn, Pete J., Chao, George Y., Fleischer, Michael, Ferraiolo, James A., Langley, Richard H., Pabst, Adolf, Zilczer, Janet A. (1985) New mineral names. American Mineralogist, 70 (1-2) 214-221 **p.215

Localities for EclariteHide

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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

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- 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.