Gibbsite
Al(OH)₃
Oxides
Hardness —
· Monoclinic
Photo: David Hospital · CC BY-SA 4.0
Luinaite-(OH)
(Na,☐)(Fe²⁺,Mg)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Discredited tourmaline mineral
Properties
- Chemical formula
- (Na,☐)(Fe²⁺,Mg)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
- 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
- —
- Dana classification
- 61.3.7.
- IMA status
- Discredited mineral (D)
- IMA symbol
- —
- Locality
- 🇦🇺 Mount Bendock
- Type locality
- —
- Discovery year
- —
Etymology
Named after Mount Cleveland tin mine, Luina
Source: Wikidata
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