Aragonite vs Biotite
| Property | Aragonite | Biotite |
|---|---|---|
| 化学式 | CaCO3 | K(Mg,Fe)3(AlSi3O10)(OH)2 |
| 晶系 | Orthorhombic | Monoclinic |
| 矿物分类 | 05 Carbonates and Nitrates | 09 Silicates |
| 莫氏硬度 | 3.5-4.0 | 2.5-3.0 |
| 颜色 | Colorless, white, yellow, blue, green | Black, dark brown, dark green |
| 光泽 | Vitreous | Vitreous |
| 条痕色 | White | White to gray |
| 透明度 | Transparent | Translucent |
| 解理 | Poor {010} | Perfect basal {001} |
| 断口 | Subconchoidal | Uneven |