Aragonite vs Biotite
| Property | Aragonite | Biotite |
|---|---|---|
| Fórmula | CaCO3 | K(Mg,Fe)3(AlSi3O10)(OH)2 |
| Sistema Cristalino | Orthorhombic | Monoclinic |
| Clase Mineral | 05 Carbonates and Nitrates | 09 Silicates |
| Dureza Mohs | 3.5-4.0 | 2.5-3.0 |
| Color | Colorless, white, yellow, blue, green | Black, dark brown, dark green |
| Brillo | Vitreous | Vitreous |
| Raya | White | White to gray |
| Transparencia | Transparent | Translucent |
| Exfoliación | Poor {010} | Perfect basal {001} |
| Fractura | Subconchoidal | Uneven |