General Information:
Chemical Formula:
Cu2AgAs
Composition:
(Molecular Weight = 309.88 gm)
Copper 41.01 % Cu
Silver 34.81 % Ag
Arsenic 24.18 % As
Empirical Formula:
Cu2AgAs
IMA Status:
Approved IMA 1970
Locality:
Cerny Dul, Czech Republic.
Name Origin:
Named for Jan Kutina (1924-), Czech mineralogist.
Physical Properties:
Cleavage:
None
Color:
silver gray.
Density:
8.38
Diaphaniety:
Opaque
Habits:
Microscopic Crystals - Crystals visible only with microscopes., ,
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Metallic
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