| Mineral | Plancheite |
|---|---|
| Formula | Cu8Si8O22(OH)4 • H2O |
| Crystal Form | Orthorhombic/Dipyramidal [2/m 2/m 2/m] |
| Cleavage | Unknown |
| Color | Blue, Greenish blue |
| Density | 3.6 – 3.8 g/cm3 |
| Diaphaneity | Translucent |
| Fracture | Unknown |
| Hardness | 5.5 |
| Lustre | Adamantine - Silky |
| Streak | Light blue |
| Type Loc. | Sanda carriere, Mindouli, Mindouli Dist., Pool Dept., Republic of Congo |
| Dana 8 Class | 66.2.1.1 |
| Strunz Class | VIII/F.05-10 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 28 |