| Mineral | Whelanite |
|---|---|
| Formula | Cu2+2Ca6[Si6O17(OH)](CO3)(OH)3 • 2(H2O) |
| Crystal Form | Orthorhombic/Pyramidal [mm2] |
| Cleavage | Perfect |
| Color | Light blue, Greenish blue |
| Density | 2.7 – 2.7 g/cm3 |
| Fracture | Splintery |
| Hardness | 2.5 |
| Lustre | Vitreous |
| Streak | light blue |
| Strunz Class | 8/D.07-20 |
| Mindat | mindat.org |
| ID | 241 |