Thortveitite
Sc₂Si₂O₇
Silicates
Hardness —
· Monoclinic
Photo: Robert M. Lavinsky · CC BY-SA 3.0
Wiluite
Ca₁₉(Al,Mg)₁₃(B,☐,Al)₅(Si₂O₇)₄(SiO₄)₁₀(O,OH)₁₀
Sorosilicate mineral
Properties
- Chemical formula
- Ca₁₉(Al,Mg)₁₃(B,☐,Al)₅(Si₂O₇)₄(SiO₄)₁₀(O,OH)₁₀
- Group
- Silicates
- Crystal system
- Tetragonal
- Hardness (Mohs)
- —
- Color
- Green
- Luster
- —
- Streak
- —
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- P4/nnc
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 9.BG.35
- Dana classification
- 58.2.4.2
- IMA status
- Approved mineral and/or valid name (A)
- IMA symbol
- Wil
- Locality
- 🇷🇺 Akhtaragda river mouth
- Type locality
- —
- Discovery year
- —
Etymology
Named after Vilyuy
Source: Wikidata
For sale on the marketplace
View all →
No offers for Wiluite at the moment. Browse the marketplace →
