Inderite
Mineral MgB3O3(OH)5·5H2O
About it
Colourless prisms and nodules of magnesium borate, named for the Inder borate deposit in Kazakhstan. Large crystals come from Boron, California; kurnakovite has the same formula.
- Type
- Mineral
- Group
- Borate
- Formula
- MgB3O3(OH)5·5H2O
- Hardness (Mohs)
- 2.5–3
- Specific gravity
- 1.78–1.8
- Streak
- white
- Lustre
- vitreous (glassy)
- Crystal system
- Monoclinic
- Colours
- colourless, white, pink
- Transparency
- transparent, translucent
- Cleavage and fracture
- good in one direction
Typical values: real specimens vary. For more, see mindat.org.