| Mineral | Callaghanite |
|---|---|
| Formula | Cu2Mg2[(OH)6|CO3) • 2(H2O) |
| Crystal Form | Monoclinic/Prismatic [2/m] |
| Cleavage | [111] Perfect, [111] Perfect |
| Color | Azure, Violet blue |
| Density | 2.7 g/cm3 |
| Diaphaneity | Transparent |
| Fracture | Brittle - Uneven |
| Hardness | 3.0 - 3.5 |
| Lustre | Vitreous |
| Streak | White |
| Type Loc. | Premier Chemicals Mine, Gabbs Dist., Nye Co., NV, USA |
| Dana 8 Class | 16b.5.1.1 |
| Strunz Class | V/E.07-10 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 104 |