Thortveitite
Sc₂Si₂O₇
Silicates
Hardness —
· Monoclinic
Photo: Rudolf Pohl · CC BY-SA 3.0
Haüyne
Na₃Ca(Si₃Al₃)O₁₂(SO₄)
Tectosilicate mineral
Properties
- Chemical formula
- Na₃Ca(Si₃Al₃)O₁₂(SO₄)
- Group
- Silicates
- Crystal system
- Cubic
- Hardness (Mohs)
- —
- Color
- Blue
- Luster
- —
- Streak
- —
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- P-43n
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 9.FB.10
- Dana classification
- 76.2.3.3
- IMA status
- Grandfathered mineral (G)
- IMA symbol
- Hyn
- Locality
- 🇮🇹 Lake Nemi
- Type locality
- —
- Discovery year
- —
Etymology
Named after René Just Haüy
Source: Wikidata
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