Apatite vs Corundum
| Property | Apatite | Corundum |
|---|---|---|
| الصيغة الكيميائية | Ca5(PO4)3(F,Cl,OH) | Al2O3 |
| النظام البلوري | Hexagonal | Trigonal |
| صنف المعدن | 08 Phosphates, Arsenates, and Vanadates | 04 Oxides and Hydroxides |
| صلادة موس | 5.0 | 9.0 |
| اللون | Green, blue, yellow, violet, colorless | Red (ruby), blue (sapphire), various colors |
| اللمعان | Vitreous | Adamantine |
| لون الخط | White | Colorless |
| الشفافية | Transparent | Transparent |
| الانفصام | Poor {0001} | None |
| الكسر | Conchoidal to uneven | Conchoidal to uneven |