Thortveitite
Sc₂Si₂O₇
Silicates
Hardness —
· Monoclinic
Photo: Atali A. Agakhanov; Elena Sokolova; Fernando Cámara; Vladimir Yu. Karpenko; Frank C. Hawthorne; Leonid A. Pautov; Anatol... · CC BY 4.0
Mendeleevite-(Ce)
Cs₆(REE₂₂Ca₆)(Si₇₀O₁₇₅)(OH,F)₁₄(H₂O)₂₁
Silicate mineral
Properties
- Chemical formula
- Cs₆(REE₂₂Ca₆)(Si₇₀O₁₇₅)(OH,F)₁₄(H₂O)₂₁
- Group
- Silicates
- Crystal system
- Cubic
- Hardness (Mohs)
- —
- Color
- —
- Luster
- —
- Streak
- —
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- Pm-3
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- —
- Dana classification
- —
- IMA status
- Approved mineral and/or valid name (A)
- IMA symbol
- Mdl-Ce
- Locality
- 🇹🇯 Darai-Pioz glacier
- Type locality
- —
- Discovery year
- —
Etymology
Named after cerium
Source: Wikidata
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