Bornhardtite
Co²⁺Co³⁺₂Se₄
Spinel, selenide mineral
Properties
- Chemical formula
- Co²⁺Co³⁺₂Se₄
- Group
- Sulfides
- Crystal system
- Cubic
- Hardness (Mohs)
- —
- Color
- —
- Luster
- —
- Streak
- —
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- Fd-3m
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 2.DA.05
- Dana classification
- 2.10.1.5
- IMA status
- Grandfathered mineral (G)
- IMA symbol
- Bhd
- Locality
- 🇩🇪 Trogtal quarries, Lautenthal
- Type locality
- —
- Discovery year
- —
Etymology
Named after Friedrich Wilhelm Conrad Eduard Bornhardt
Source: Wikidata
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