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UM1989-15-S:AgBiCuFePbSe

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Formula:
Fe3CuBi(Ag,Pb)(S,Se)
Reported as "mineral B" and co-described with chemically similar 'UM1989-21-S:BiCuFePbSe' ("mineral A").

Forms elongate grains, 1 x 1 microns size, making up a 2-4 microns wide rim around "mineral A".

Note: very poor analytical total.


Classification of UM1989-15-S:AgBiCuFePbSe

Optical Data of UM1989-15-S:AgBiCuFePbSe

Type:
Anisotropic
Anisotropism:
air: bluish gray to bright yellow; immersion oil: dark gray to yellowish gray
Pleochroism:
Visible
Comments:
reflected light: gray to dark gray in air, dark gray to brownish
gray in immersion oil
Comments:
relief higher than that of the "mineral A" and Se-bearing bismuthinite

Chemical Properties of UM1989-15-S:AgBiCuFePbSe

Formula:
Fe3CuBi(Ag,Pb)(S,Se)
Elements listed in formula:
Analytical Data:
electron microprobe, wt.%; Fe/Cu/Bi/(Ag + Pb)/(S + Se): 3/1/1/1/3; Ag/Pb: 2.48/1; S/Se : 2.3/1
Cu 7.33
Fe 20.67
Pb 7.15
Bi 21.34
Ag 9.13
Se 7.69
S 8.00

total 81.3

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for UM1989-15-S:AgBiCuFePbSe

Reference List:
Gertsen, L.E, Kotelnikov, P.E., Eremeeva, E.Ya. (1989) New find of selenium minerals in porphyry copper deposits of Kazakhstan. Izvestiya Akad. Nauk Kazak. SSR, Ser. Geol.: 1989(3): 4549 (in Russian); in: Jambor, J.L., Puziewicz, J. (1991): New mineral Names. American Mineralogist: 76: 1733

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. Canadian Mineralogist: 45: 983-1055; http://nrmima.nrm.se (2016)

Internet Links for UM1989-15-S:AgBiCuFePbSe

mindat.org URL:
https://www.mindat.org/min-51633.html
Please feel free to link to this page.

Localities for UM1989-15-S:AgBiCuFePbSe

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Kazakhstan
 
  • Karagandy Province (Qaragandy Oblysy; Karaganda Oblast')
Gertsen, L.E, Kotelnikov, P.E., Eremeeva, E.Ya. (1989) New find of selenium minerals in porphyry copper deposits of Kazakhstan. Izvestiya Akad. Nauk Kazak. SSR, Ser. Geol.: 1989(3): 4549 (in Russian); in: Jambor, J.L., Puziewicz, J. (1991): New mineral Names. American Mineralogist: 76: 1733
 
矿物 and/or 产地  
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