Cronstedtite
Fe²⁺₂Fe³⁺((Si,Fe³⁺)₂O₅)(OH)₄
Phyllosilicate mineral; polytypes: 1M, 1T, 2H2, 3T, 6R2, 6T2
Properties
- Chemical formula
- Fe²⁺₂Fe³⁺((Si,Fe³⁺)₂O₅)(OH)₄
- Group
- Silicates
- Crystal system
- —
- Hardness (Mohs)
- —
- Color
- Black
- Luster
- —
- Streak
- —
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- —
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 9.ED.15
- Dana classification
- 71.1.4.7
- IMA status
- Grandfathered mineral (G)
- IMA symbol
- Cro
- Locality
- 🇨🇿 Příbram District
- Type locality
- —
- Discovery year
- —
Etymology
Named after Axel Fredrik Cronstedt
Source: Wikidata
For sale on the marketplace
View all →
No offers for Cronstedtite at the moment. Browse the marketplace →
