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UM1996-29-S:AgTe

Valid as an unnamed mineral
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Formula:
Ag(S,Te)2
generalized as AgS1+xTe1-x (x = 0.09-0.58)
Co-described with UM1996-28-S:AgPbTe and UM1996-34-S:PbTe.

Reported as "M1". Found as grains, up to 100 microns in diameter. In quartz-sulfide-gold veins with altaite, hessite, petzite, stützite, sylvanite, tellurium, tellurobismuthite, and volynskite.

Electron microprobe data (wt.%, mean and ranges):

Fe 0.06 (0.06-0.09)
Cu 0.08 (0.8-0.21)
Pb 1.98 (0.00-4.44)
Ag 47.26 (35.71-58.14)
Au 0.25 (0.00-2.93)
S 20.99 (13.72-29.67)
Te 28.67 (25.04-46.53)
As 0.10 (0.00-0.10)
Sb 0.00 (0.00-0.04)
Bi 0.00 (0.00-1.10)

total 99.39

The above corresponds to Ag(S1.48Te0.52).


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Unique IdentifiersHide

Mindat ID:
54068
Long-form identifier:
mindat:1:1:54068:3

Similar NamesHide

IMA Classification of UM1996-29-S:AgTeHide

IMA status notes:
Unnamed (probably valid)

Physical Properties of UM1996-29-S:AgTeHide

Hardness:
VHN50=126 kg/mm2 - Vickers

Optical Data of UM1996-29-S:AgTeHide

Anisotropism:
strong
Reflectivity:
WavelengthR1 (%)
405nm30.8%
436nm32.19%
480nm32.32%
526nm32.28%
546nm31.66%
589nm30.16%
644nm28.17%
656nm27.45%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 32.32%.
Colour in reflected light:
gray with greenish tint

Chemistry of UM1996-29-S:AgTeHide

Mindat Formula:
Ag(S,Te)2

generalized as AgS1+xTe1-x (x = 0.09-0.58)
Element Weights:
Element% weight
Ag62.715 %
S37.285 %

Calculated from ideal end-member formula.
Elements listed:
Ag, S, Te - 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 UM1996-29-S:AgTeHide

References for UM1996-29-S:AgTeHide

Localities for UM1996-29-S:AgTeHide

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.
China
 
  • Beijing
Cui et al. (1996) +1 other reference
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