Lizardite
Mineral Mg3Si2O5(OH)4
About it
The commonest serpentine of massive serpentinite, fine-grained and waxy green; named for the Lizard peninsula of Cornwall, where it is carved into ornaments.
- Type
- Mineral
- Group
- Silicate (phyllosilicate), serpentine group
- Formula
- Mg3Si2O5(OH)4
- Hardness (Mohs)
- 2.5
- Specific gravity
- 2.55–2.58
- Streak
- white
- Lustre
- waxy, greasy
- Crystal system
- Trigonal
- Colours
- green, light yellow, white
- Transparency
- transparent, translucent, opaque
- Cleavage and fracture
- perfect in one direction (microscopic)
Typical values: real specimens vary. For more, see mindat.org.