Photo: Victor V. Sharygin, Sergey N. Britvin, Felix V. Kaminsky, Richard Wirth, Elena N. Nigmatulina, Grigory A. Yakovlev, Kons... · CC BY 4.0
Rankinite
Ca₃Si₂O₇
Sorosilicate mineral
Properties
- Chemical formula
- Ca₃Si₂O₇
- Group
- Silicates
- Crystal system
- Monoclinic
- Hardness (Mohs)
- —
- Color
- —
- Luster
- —
- Streak
- —
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- P2₁/a
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 9.BC.15
- Dana classification
- 55.3.1.1
- IMA status
- Grandfathered mineral (G)
- IMA symbol
- Rnk
- Locality
- 🇬🇧 Scawt Hill
- Type locality
- —
- Discovery year
- —
Etymology
Named after George A. Rankin
Source: Wikidata
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