Gibbsite
Al(OH)₃
Oxides
Hardness —
· Monoclinic
Photo: Wikimedia Commons
Betpakdalite-CaCa
[Ca₂(H₂O)₁₇Ca(H₂O)₆][Mo₆+₈As₅+₂Fe³⁺₃O₃₆(OH)]
Heteropolymolybdate mineral
Properties
- Chemical formula
- [Ca₂(H₂O)₁₇Ca(H₂O)₆][Mo₆+₈As₅+₂Fe³⁺₃O₃₆(OH)]
- Group
- Oxides
- 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.DM.15
- Dana classification
- 49.4.1.1
- IMA status
- Redefined mineral (Rd)
- IMA symbol
- Bpd-CaCa
- Locality
- 🇰🇿 Kara-Oba tungsten-molybdenum deposit
- Type locality
- —
- Discovery year
- —
Etymology
Named after Betpak-Dala
Source: Wikidata
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