Clinozoisite
Mineral Ca2Al3(SiO4)(Si2O7)O(OH)
About it
The iron-poor partner of epidote, paler grey-green to pink; good crystals come from Baja California, Mexico, and Pakistan.
- Type
- Mineral
- Group
- Silicate (sorosilicate), epidote group
- Formula
- Ca2Al3(SiO4)(Si2O7)O(OH)
- Hardness (Mohs)
- 6.5–7
- Specific gravity
- 3.21–3.38
- Streak
- white
- Lustre
- vitreous (glassy)
- Crystal system
- Monoclinic
- Colours
- grey, pale green, pink, yellow, colourless
- Transparency
- transparent, translucent
- Cleavage and fracture
- perfect in one direction
Typical values: real specimens vary. For more, see mindat.org.