Metavariscite
Mineral AlPO4·2H2O
About it
The monoclinic twin of variscite with the same formula, found in the same Utah nodules from Clay Canyon. Usually needs testing to tell from variscite.
- Type
- Mineral
- Group
- Phosphate, metavariscite group
- Formula
- AlPO4·2H2O
- Hardness (Mohs)
- 3.5
- Specific gravity
- 2.53–2.55
- Streak
- white
- Lustre
- vitreous (glassy)
- Crystal system
- Monoclinic
- Colours
- pale green, green, colourless
- Transparency
- translucent
- Cleavage and fracture
- good in one direction
Typical values: real specimens vary. For more, see mindat.org.