Inyoite
Mineral CaB3O3(OH)5·4H2O
About it
Colourless, short prisms and crusts that turn cloudy white with time as they lose water. First found in Inyo County, California; large crystals come from the borate deposits of Turkey.
- Type
- Mineral
- Group
- Borate
- Formula
- CaB3O3(OH)5·4H2O
- Hardness (Mohs)
- 2
- Specific gravity
- 1.87–1.88
- Streak
- white
- Lustre
- vitreous (glassy)
- Crystal system
- Monoclinic
- Colours
- colourless, white
- Transparency
- transparent, translucent
- Cleavage and fracture
- good in one direction
Typical values: real specimens vary. For more, see mindat.org.