Tyuyamunite
Ca(UO₂)₂(VO₄)₂·5-8H₂O
Phosphates
Hardness —
· Orthorhombic
Groatite
☐NaCaMn₂(PO₄)(HPO₄)₂
Phosphate mineral
Properties
- Chemical formula
- ☐NaCaMn₂(PO₄)(HPO₄)₂
- Group
- Phosphates
- Crystal system
- Monoclinic
- 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.AC.10
- Dana classification
- 39.2.7.6
- IMA status
- Approved mineral and/or valid name (A)
- IMA symbol
- Goa
- Locality
- 🇨🇦 Tanco mine
- Type locality
- —
- Discovery year
- —
Etymology
Named after Lee A. Groat
Source: Wikidata
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