Apatite vs Feldspar (Orthoclase)
| Property | Apatite | Feldspar (Orthoclase) |
|---|---|---|
| Formel | Ca5(PO4)3(F,Cl,OH) | KAlSi3O8 |
| Kristallsystem | Hexagonal | Monoclinic |
| Mineralklasse | 08 Phosphates, Arsenates, and Vanadates | 09 Silicates |
| Mohshärte | 5.0 | 6.0-6.5 |
| Farbe | Green, blue, yellow, violet, colorless | White, pink, cream, gray |
| Glanz | Vitreous | Vitreous |
| Strichfarbe | White | White |
| Transparenz | Transparent | Translucent |
| Spaltbarkeit | Poor {0001} | Perfect {001}, good {010} |
| Bruch | Conchoidal to uneven | Uneven to conchoidal |