Ferro-ferri-obertiite
NaNa₂(Fe²⁺₃Fe³⁺Ti⁴⁺)Si₈O₂₂O₂
Oxo amphibole, double chain inosilicate mineral
Properties
- Chemical formula
- NaNa₂(Fe²⁺₃Fe³⁺Ti⁴⁺)Si₈O₂₂O₂
- Group
- Silicates
- Crystal system
- Monoclinic
- Hardness (Mohs)
- —
- Color
- Black
- Luster
- —
- Streak
- Grey
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- C2/m
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- —
- Dana classification
- 66.4.9.3
- IMA status
- Redefined mineral (Rd)
- IMA symbol
- Ffob
- Locality
- 🇺🇸 Coyote Peak
- Type locality
- —
- Discovery year
- —
Etymology
Named after obertiite rootname series
Source: Wikidata
For sale on the marketplace
View all →
No offers for Ferro-ferri-obertiite at the moment. Browse the marketplace →
