UM1986-48-S:CuFeSn
A material that is NOT an approved mineral species
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Formula:
Cu12Fe3Sn3S16
more specifically Cu+6Fe2+0.5Fe3+Sn1.5S8
Crystal System:
Tetragonal
Reported as "Mineral I"; 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), 'UM1986-43-S:CuFeSn' (Mineral III), and 'UM1986-47-S:CuFeSn' (probably Mineral II), from unspecified Au-Ag volcanic deposits of the Soviet Central Asia.
Unique Identifiers
Mindat ID:
50329
Long-form identifier:
mindat:1:1:50329:3
GUID
(UUID V4):
(UUID V4):
f84e0ae6-05a8-42ab-b388-e59f01936b1d
Physical Properties of UM1986-48-S:CuFeSn
Hardness:
VHN100=240 - Vickers
Comment:
average
Optical Data of UM1986-48-S:CuFeSn
Anisotropism:
distinct, blue-brown-red colour effects
Bireflectance:
visible
Colour in reflected light:
orange-brown
Pleochroism:
Visible
Comments:
orange to pink-brown, distinct
Chemical Properties of UM1986-48-S:CuFeSn
Formula:
Cu12Fe3Sn3S16
more specifically Cu+6Fe2+0.5Fe3+Sn1.5S8
more specifically Cu+6Fe2+0.5Fe3+Sn1.5S8
Elements listed:
Crystallography of UM1986-48-S:CuFeSn
Crystal System:
Tetragonal
Class (H-M):
4 2m - Scalenohedral
Space Group:
P4m2
Cell Parameters:
a = 7.60 Å, c = 5.76 Å
Ratio:
a:c = 1 : 0.758
Unit Cell V:
332.70 ų (Calculated from Unit Cell)
Comment:
Space group most likely erroneously reported as P4m2
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 UM1986-48-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 UM1986-48-S:CuFeSn
mindat.org URL:
https://www.mindat.org/min-50329.html
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Mineral Dealers:
