| Identification | |
| Colour | Dark green, shades of black, brown |
| Streak | White |
| Luster | Glass, fat, wax |
| Hardness | 2,5-4 |
| Cleavage | - |
| Fracture | Conchoidal |
| Сrystal system | Мonoclinic |
Uses: Ornamental and decorative material.
Deposits: It is mined in India, Tajikistan, Azerbaijan, Kazakhstan, New Zealand, Great Britain and Italy.
Date of last changes:26.03.2019
