Tyuyamunite
Ca(UO₂)₂(VO₄)₂·5-8H₂O
Phosphates
Hardness —
· Orthorhombic
Merrillite
Ca₉NaMg(PO₄)₇
Phosphate mineral; a variety of whitlockite in the past
Properties
- Chemical formula
- Ca₉NaMg(PO₄)₇
- Group
- Phosphates
- Crystal system
- Trigonal
- Hardness (Mohs)
- —
- Color
- Colorless
- Luster
- —
- Streak
- —
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- —
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 8.AC.45
- Dana classification
- 38.3.4.4
- IMA status
- Redefined mineral (Rd)
- IMA symbol
- Mer
- Locality
- 🇮🇳 Dhurmsala meteorite
- Type locality
- —
- Discovery year
- —
Etymology
Named after George P. Merrill
Source: Wikidata
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