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Pearceite-M2a2b2c
A structural variant of Pearceite
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Formula:
[Ag6As2S7][Ag9CuS4]
Crystal System:
Monoclinic
Unique Identifiers
Mindat ID:
31644
Long-form identifier:
mindat:1:1:31644:8
Chemistry of Pearceite-M2a2b2c
Mindat Formula:
[Ag6As2S7][Ag9CuS4]
Element Weights:
Elements listed:
Crystallography of Pearceite-M2a2b2c
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 26.036(2) Å, b = 15.0319(13) Å, c = 24.042(3) Å
β = 90.000(13)°
β = 90.000(13)°
Ratio:
a:b:c = 1.732 : 1 : 1.599
Unit Cell V:
9,409.33 ų (Calculated from Unit Cell)
Z:
16
Comment:
Data from Bindi et al. (2007). Twinning gives rise to an apparent trigonal symmetry, with the unit-cell parameters (hexagonal cell) a = 15.0319(13) and c = 24.042(3) Å.
Synonyms of Pearceite-M2a2b2c
Arsenpolybasite (in part)
Other Language Names for Pearceite-M2a2b2c
Russian:Пирсеит-M2a2b2c
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.
Internet Links for Pearceite-M2a2b2c
mindat.org URL:
https://www.mindat.org/min-31644.html
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