Thortveitite
Sc₂Si₂O₇
Silicates
Hardness —
· Monoclinic
Photo: Wikimedia Commons
Dollaseite-(Ce)
{CaCe}{MgAlMg}(Si₂O₇)(SiO₄)(OH)F
Epidote supergroup, sorosilicate mineral
Properties
- Chemical formula
- {CaCe}{MgAlMg}(Si₂O₇)(SiO₄)(OH)F
- Group
- Silicates
- Crystal system
- Monoclinic
- Hardness (Mohs)
- —
- Color
- Brown
- Luster
- —
- Streak
- Brown
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- P2₁/m
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 9.BG.05c
- Dana classification
- 58.2.1a.6
- IMA status
- Redefined mineral (Rd)
- IMA symbol
- Dls-Ce
- Locality
- —
- Type locality
- —
- Discovery year
- —
Etymology
Named after Wayne A. Dollase
Source: Wikidata
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