Thortveitite
Sc₂Si₂O₇
Silicates
Hardness —
· Monoclinic
Photo: Wikimedia Commons
Saryarkite-(Y)
Ca(Y,Th)Al₅(SiO₄)₂(PO₄)₂(OH)₇·6H₂O
Nesosilicate phosphate mineral
Properties
- Chemical formula
- Ca(Y,Th)Al₅(SiO₄)₂(PO₄)₂(OH)₇·6H₂O
- Group
- Silicates
- Crystal system
- —
- Hardness (Mohs)
- —
- Color
- —
- Luster
- —
- Streak
- —
- Density
- 3,07 g/cm³
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- —
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 8.DO.25
- Dana classification
- —
- IMA status
- Renamed mineral (Rn)
- IMA symbol
- Syk-Y
- Locality
- —
- Type locality
- —
- Discovery year
- —
Etymology
Named after Saryarka – Steppe and Lakes of Northern Kazakhstan
Source: Wikidata
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