Gibbsite
Al(OH)₃
Oxides
Hardness —
· Monoclinic
Photo: Wikimedia Commons
Zemannite
Mg₀.₅ZnFe³⁺(Te⁴⁺O₃)₃·4.5H₂O
Tellurite mineral
Properties
- Chemical formula
- Mg₀.₅ZnFe³⁺(Te⁴⁺O₃)₃·4.5H₂O
- Group
- Oxides
- Crystal system
- Hexagonal
- Hardness (Mohs)
- —
- Color
- Brown
- Luster
- —
- Streak
- White
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- P6₃
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 4.JM.05
- Dana classification
- 34.3.2.1
- IMA status
- Approved mineral and/or valid name (A)
- IMA symbol
- Zem
- Locality
- 🇲🇽 Moctezuma mine
- Type locality
- —
- Discovery year
- —
Etymology
Named after Josef Zemann
Source: Wikidata
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