UM1971-12-S:BiCu

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Discuss UM1971-12-S:BiCu

Edit UM1971-12-S:BiCu Add Synonym Edit CIF structures Clear Cache

Formula:

~Cu₈BiS₆

From the original paper: Cu_9.3Bi_1.1S_6.8

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:BiCu		Cu₄BiS₄
UM1990-52-Se:BiCu		Cu₁₁(Ni,Co)_0.4Bi₂Se₁₃
UM1993-12-S:BiCu		Cu₃BiS₃

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: Cu_9.3Bi_1.1S_6.8

Element Weights:

Element	% weight
Cu	55.881 %
Bi	22.972 %
S	21.148 %

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.

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References for UM1971-12-S:BiCuHide

Reference List:

Honnorez-Guerstein, Beatriz Melba (1971) Betekhtinite and Bi-sulfosalts from the copper mine of "La Leona" (Argentina). Mineralium Deposita, 6 (2). 111-121 doi:10.1007/bf00206622(In: Fleischer, M. (1972): New mineral names. American Mineralogist: 57: 326)

Smith, D. G.W.; Nickel, E. H. (2007) A System of Codification for Unnamed Minerals: Report of the Subcommittee for Unnamed Minerals of the IMA Commission on New Minerals, Nomenclature and Classification. The Canadian Mineralogist, 45 (4). 983-990 doi:10.2113/gscanmin.45.4.983

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 ⓘ La Leona mine	Honnorez-Guerstein (1971) +1 other reference

Austria
Styria Murau District Neumarkt in der Steiermark Dürnstein ⓘ Mn deposit ?	Auer (2019)