Apatite vs Biotite
| Property | Apatite | Biotite |
|---|---|---|
| सूत्र | Ca5(PO4)3(F,Cl,OH) | K(Mg,Fe)3(AlSi3O10)(OH)2 |
| क्रिस्टल प्रणाली | Hexagonal | Monoclinic |
| खनिज वर्ग | 08 Phosphates, Arsenates, and Vanadates | 09 Silicates |
| मोह कठोरता | 5.0 | 2.5-3.0 |
| रंग | Green, blue, yellow, violet, colorless | Black, dark brown, dark green |
| चमक | Vitreous | Vitreous |
| रेखा रंग | White | White to gray |
| पारदर्शिता | Transparent | Translucent |
| विदलन | Poor {0001} | Perfect basal {001} |
| विभंग | Conchoidal to uneven | Uneven |