| Mineral | Teineite |
|---|---|
| Formula | Cu2+(Te4+O3) · 2H2O |
| Crystal Form | Orthorhombic/Disphenoidal [222] |
| Cleavage | Good on {010}, poor on {001} and {100} |
| Color | Sky-blue, cobalt-blue, bluish gray; bright blue to greenish blue in transmitted light |
| Density | 3.8 – 3.9 g/cm3 |
| Diaphaneity | Translucent |
| Fracture | Brittle |
| Hardness | 2.5 |
| Streak | Pale blue |
| Type Loc. | Teine Mine, Sapporo City, Ishikari Subpref., Hokkaidō Pref., Japan |
| Dana 8 Class | 34.2.2.2 |
| Strunz Class | 4.JM.20 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 505 |