Tyuyamunite
Ca(UO₂)₂(VO₄)₂·5-8H₂O
Phosphates
Hardness —
· Orthorhombic
Photo: David Hospital · CC BY-SA 4.0
Geminite
Cu(HAsO₄)·H₂O
Hydrous arsenate mineral
Properties
- Chemical formula
- Cu(HAsO₄)·H₂O
- Group
- Phosphates
- Crystal system
- Triclinic
- Hardness (Mohs)
- —
- Color
- —
- Luster
- —
- Streak
- —
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- —
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 8.CB.30
- Dana classification
- 40.5.12.1
- IMA status
- Approved mineral and/or valid name (A)
- IMA symbol
- Gem
- Locality
- 🇫🇷 Cap Garonne mine
- Type locality
- —
- Discovery year
- —
Etymology
Named after twin
Source: Wikidata
For sale on the marketplace
View all →
No offers for Geminite at the moment. Browse the marketplace →
