Apatite vs Copper
| Property | Apatite | Copper |
|---|---|---|
| Formula | Ca5(PO4)3(F,Cl,OH) | Cu |
| Crystal System | Hexagonal | Cubic (Isometric) |
| Mineral Class | 08 Phosphates, Arsenates, and Vanadates | 01 Native Elements |
| Mohs Hardness | 5.0 | 2.5-3.0 |
| Color | Green, blue, yellow, violet, colorless | Copper-red, tarnishes to brown/green |
| Luster | Vitreous | Metallic |
| Streak | White | Copper-red |
| Transparency | Transparent | Opaque |
| Cleavage | Poor {0001} | None |
| Fracture | Conchoidal to uneven | Hackly |