Apatite vs Corundum
| Property | Apatite | Corundum |
|---|---|---|
| Formule | Ca5(PO4)3(F,Cl,OH) | Al2O3 |
| Système Cristallin | Hexagonal | Trigonal |
| Classe Minérale | 08 Phosphates, Arsenates, and Vanadates | 04 Oxides and Hydroxides |
| Dureté Mohs | 5.0 | 9.0 |
| Couleur | Green, blue, yellow, violet, colorless | Red (ruby), blue (sapphire), various colors |
| Éclat | Vitreous | Adamantine |
| Trait | White | Colorless |
| Transparence | Transparent | Transparent |
| Clivage | Poor {0001} | None |
| Cassure | Conchoidal to uneven | Conchoidal to uneven |