Mineral | Chalcophyllite |
---|---|
Formula | Cu18Al2(SO4)3(AsO4)3(OH)27 ยท 33H2O |
Crystal Form | Trigonal/Rhombohedral [3] |
Cleavage | Perfect on {0001}, Slight on {10-11} |
Color | Emerald green, Grass green, Bluish green, Blue; Green in transmitted light |
Density | 2.7 – 2.7 g/cm3 |
Diaphaneity | Transparent, Translucent |
Fracture | Irregular, micaceous parting |
Hardness | 2.0 |
Lustre | Sub-Adamantine, Vitreous, Pearly |
Streak | Pale green to Bluish green |
Dana 8 Class | 43.5.14.1 |
Strunz Class | 7/D.20-50 |
Mindat | mindat.org |
WebMineral | WebMineral |
ID | 357 |