Biotite
| Use attributes for filter ! | |
| Optical properties | Biaxial (-) |
|---|---|
| Cleavage | Perfect on the |
| Crystal habit | Massive to platy |
| Crystal class | H-M symbol |
| Crystal system | Monoclinic crystal system |
| Did you know | In entry-level geology courses and in the field, the minerals generally cannot be distinguished without chemical, optical, or x-ray analysis so the name "biotite" is used. |
| Date of Reg. | |
| Date of Upd. | |
| ID | 874673 |
About Biotite
Biotite is a common phyllosilicate mineral within the mica group, with the approximate chemical formula K ₃AlSi ₃O ₁₀ ₂.