| Mineral | Whitlockite |
|---|---|
| Formula | Ca9Mg(PO4)6(PO3OH) |
| Crystal Form | Trigonal/Ditrigonal Pyramidal [3m] |
| Cleavage | None Observed |
| Color | Colourless, grey-white, light pink, light yellow; colourless in transmitted light |
| Density | 3.1 – 3.1 g/cm3 |
| Diaphaneity | Transparent to Translucent |
| Fracture | Brittle, Irregular/Uneven, Sub-Conchoidal |
| Hardness | 5.0 |
| Lustre | Vitreous, Resinous |
| Streak | White |
| Type Loc. | Palermo No. 1 Mine, Groton, Grafton Co., NH, USA |
| Dana 8 Class | 38.3.4.1 |
| Strunz Class | 8.AC.45 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 518 |