| Mineral | Cumengeite |
|---|---|
| Formula | Pb21Cu20Cl42(OH)40 • 6(H2O) |
| Crystal Form | Tetragonal/Ditetragonal-Dipyramidal [4/m 2/m 2/m] |
| Cleavage | Good on {101},Distinct on {110}, Poor on {001} |
| Color | Indigo blue |
| Density | 4.7 – 4.7 g/cm3 |
| Diaphaneity | Translucent |
| Hardness | 2.5 |
| Lustre | Sub-vitreous |
| Streak | Sky-blue |
| Type Loc. | Boleo District, Mun. de Mulegé, BCS, Mexico |
| Dana 8 Class | 10.6.7.1 |
| Strunz Class | 3/D.12-40 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 222 |