| Formula | Mg3Si2O5(OH)4 |
| Origin | Black Lake, Thetford Mines (Canada) |
| Description | green asbestous chrysotile crystals |
| Classification (Lapis) | Serpentines |
| Crystal System | monoclinic or triclinic |
| Hardness | 2,5 |
| Colour | White, pale green to dark green |
| Streak | white |
| Luminescence | none observed |
| Luster | silky |
| Transparency (Opacity) | semitransparent |
| Cleavage | good to perfect, fibres off in finest fibres |
| Fracture | conchoidal to splintery |
| Magnetism | negative |
| Geological Setting | Intermixed with orthochrysotile in veinlets cutting serpentinite |
| Specific Gravity | 2,61 g/cm3 |
