Thortveitite
Sc₂Si₂O₇
Silicates
Hardness —
· Monoclinic
Photo: Wikimedia Commons
Zirsilite-(Ce)
Na₁₁-₁₂(Ce,Na)₃Ca₆Mn₃Zr₃Nb(Si₁₉O₅₅)(Si₃O₉)₂(CO₃)(OH)₃ * H₂O
Cyclosilicate mineral
Properties
- Chemical formula
- Na₁₁-₁₂(Ce,Na)₃Ca₆Mn₃Zr₃Nb(Si₁₉O₅₅)(Si₃O₉)₂(CO₃)(OH)₃ * H₂O
- Group
- Silicates
- Crystal system
- Trigonal
- Hardness (Mohs)
- —
- Color
- White
- Luster
- —
- Streak
- White
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- R3m
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 9.CO.10
- Dana classification
- 64.1.1.13
- IMA status
- Approved mineral and/or valid name (A)
- IMA symbol
- Zir-Ce
- Locality
- 🇹🇯 Darai-Pioz glacier
- Type locality
- —
- Discovery year
- —
Etymology
Named after silicon
Source: Wikidata
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