Apatite vs Corundum
| Property | Apatite | Corundum |
|---|---|---|
| 化学式 | Ca5(PO4)3(F,Cl,OH) | Al2O3 |
| 晶系 | Hexagonal | Trigonal |
| 矿物分类 | 08 Phosphates, Arsenates, and Vanadates | 04 Oxides and Hydroxides |
| 莫氏硬度 | 5.0 | 9.0 |
| 颜色 | Green, blue, yellow, violet, colorless | Red (ruby), blue (sapphire), various colors |
| 光泽 | Vitreous | Adamantine |
| 条痕色 | White | Colorless |
| 透明度 | Transparent | Transparent |
| 解理 | Poor {0001} | None |
| 断口 | Conchoidal to uneven | Conchoidal to uneven |