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UM1971-12-S:BiCu

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Formula:
~Cu8BiS6
From the original paper: Cu9.3Bi1.1S6.8
Colour:
Light olive gray
Reported as "Mineral II". From copper ore of La Leona mine, Argentina.

Two types of inclusions in galena: (1) acicular, 8-10 microns in length, oriented along (111); (2) drop-like or vermicular, up to 25 microns long.

Compare 'UM1971-15-S:BiCuPb' ("Mineral I").


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Unique IdentifiersHide

Mindat ID:
47236
Long-form identifier:
mindat:1:1:47236:4

Similar NamesHide

UM1975-12-S:BiCuCu4BiS4
UM1990-52-Se:BiCuCu11(Ni,Co)0.4Bi2Se13
UM1993-12-S:BiCuCu3BiS3

Physical Properties of UM1971-12-S:BiCuHide

Colour:
Light olive gray

Optical Data of UM1971-12-S:BiCuHide

Anisotropism:
strong, greenish yellow to dark gray
Pleochroism:
Visible
Comments:
Reflectance: lower than that of galena

Chemistry of UM1971-12-S:BiCuHide

Mindat Formula:
~Cu8BiS6

From the original paper: Cu9.3Bi1.1S6.8
Element Weights:
Element% weight
Cu55.881 %
Bi22.972 %
S21.148 %

Calculated from ideal end-member formula.
Elements listed:
Bi, Cu, S - search for minerals with similar chemistry

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 UM1971-12-S:BiCuHide

References for UM1971-12-S:BiCuHide

Localities for UM1971-12-S:BiCuHide

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.
Argentina
 
  • Santa Cruz Province
    • Deseado Department
      • Tres Cerros
Honnorez-Guerstein (1971) +1 other reference
Austria
 
  • Styria
    • Murau District
      • Neumarkt in der Steiermark
        • Dürnstein
Auer (2019)
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