Apatite vs Epidote
| Property | Apatite | Epidote |
|---|---|---|
| Formula | Ca5(PO4)3(F,Cl,OH) | Ca2(Al,Fe)3(SiO4)(Si2O7)O(OH) |
| Crystal System | Hexagonal | Monoclinic |
| Mineral Class | 08 Phosphates, Arsenates, and Vanadates | 09 Silicates |
| Mohs Hardness | 5.0 | 6.0-7.0 |
| Color | Green, blue, yellow, violet, colorless | Pistachio green, yellowish-green, dark green |
| Luster | Vitreous | Vitreous |
| Streak | White | Gray |
| Transparency | Transparent | Translucent |
| Cleavage | Poor {0001} | Perfect {001} |
| Fracture | Conchoidal to uneven | Uneven |