Grumantite
NaSi₂O₄(OH)·H₂O
Transitional structure between phyllosilicate and other silicate unit, mineral
Properties
- Chemical formula
- NaSi₂O₄(OH)·H₂O
- Group
- Silicates
- Crystal system
- Orthorhombic
- Hardness (Mohs)
- —
- Color
- —
- Luster
- —
- Streak
- —
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- Fdd2
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 9.EH.10
- Dana classification
- 78.4.5.1
- IMA status
- Approved mineral and/or valid name (A)
- IMA symbol
- Gmt
- Locality
- 🇷🇺 Alluaiv Mountain
- Type locality
- —
- Discovery year
- —
Source: Wikidata
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