UM1986-43-S:CuFeSn
A material that is NOT an approved mineral species
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Formula:
Cu11Fe2Sn4S16
more specifically Cu+10Cu2+Fe2+2Sn4S16
Crystal System:
Tetragonal
Reported as "Mineral III"; co-described with 'UM1986-44-S:CuFeSn' (Mineral IV), 'UM1986-45-S:CuFeSn' (Mineral V), 'UM1986-49-S:CuSn' (Mineral VI), 'UM1986-46-S:CuFeSn' (Mineral VII), 'UM1986-48-S:CuFeSn' (Mineral I), and 'UM1986-47-S:CuFeSn' (probably Mineral II), from unspecified Au-Ag volcanic deposits of the Soviet Central Asia.
Unique Identifiers
Mindat ID:
50323
Long-form identifier:
mindat:1:1:50323:9
GUID
(UUID V4):
(UUID V4):
75dd219c-913d-4b8b-9a7f-e97ed736b8b9
Physical Properties of UM1986-43-S:CuFeSn
Hardness:
VHN100=230 - Vickers
Comment:
average
Optical Data of UM1986-43-S:CuFeSn
Anisotropism:
weak
Bireflectance:
very weak
Reflectivity:
Wavelength | R |
---|---|
580nm | 19.5% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 19.5%.
Colour in reflected light:
gray with lilac tint
Pleochroism:
Non-pleochroic
Chemical Properties of UM1986-43-S:CuFeSn
Formula:
Cu11Fe2Sn4S16
more specifically Cu+10Cu2+Fe2+2Sn4S16
more specifically Cu+10Cu2+Fe2+2Sn4S16
Elements listed:
Crystallography of UM1986-43-S:CuFeSn
Crystal System:
Tetragonal
Cell Parameters:
a = 10.78 Å, c = 5.39 Å
Ratio:
a:c = 1 : 0.5
Unit Cell V:
626.36 ų (Calculated from Unit Cell)
Comment:
Space group P421m or P4212
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 UM1986-43-S:CuFeSn
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kovalenker, V.A., Nekrasov, I.Ya., Malov, V.S. (1986) Mineralogy and paragenesis of copper and iron sulfostannates in gold-silver deposits. Geologiya Rudnykh Mestorozhdeniy: 1986(2): 67-84 (in Russian); in: Jambor, J.L., Grew, E.S., Puziewicz, J., Vanko, D.A. (1988): New mineral Names. American Mineralogist: 73: 443
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
Internet Links for UM1986-43-S:CuFeSn
mindat.org URL:
https://www.mindat.org/min-50323.html
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