General Information:
Chemical Formula:
(Pb,Cu)2-3(CO3)1.5-2(OH,F)0.5-1[(Al,Fe+++)2(Si,Al)4O10(OH)2]·n(H2O)
Environment:
Oxidation zone of Pb-Zn-Cu deposit.
IMA Status:
Approved IMA 1978
Locality:
Cruz del Sur mine, Rio Negro Province, Argentina.
Name Origin:
Named for the locality.
Physical Properties:
Cleavage:
[001] Perfect
Color:
white or light green.
Density:
4
Diaphaniety:
Transparent
Habits:
Tabular - Form dimensions are thin in one direction., Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape.,
Hardness:
2-3 - Gypsum-Calcite
Luster:
Vitreous (Glassy)
Streak:
white
More details...