Amazonite vs Biotite
| Property | Amazonite | Biotite |
|---|---|---|
| Fórmula | KAlSi3O8 | K(Mg,Fe)3(AlSi3O10)(OH)2 |
| Sistema Cristalino | Triclinic | Monoclinic |
| Classe Mineral | 09 Silicates | 09 Silicates |
| Dureza Mohs | 6.0-6.5 | 2.5-3.0 |
| Cor | Green, blue-green | Black, dark brown, dark green |
| Brilho | Vitreous | Vitreous |
| Traço | White | White to gray |
| Transparência | Translucent | Translucent |
| Clivagem | Perfect {001}, good {010} | Perfect basal {001} |
| Fratura | Conchoidal to uneven | Uneven |