Gibbsite
Al(OH)₃
Oxides
Hardness —
· Monoclinic
Photo: Wikimedia Commons
Walfordite
(Fe³⁺,Te₆+)Te₄+₃O₈
Tellurite mineral
Properties
- Chemical formula
- (Fe³⁺,Te₆+)Te₄+₃O₈
- Group
- Oxides
- Crystal system
- Cubic
- Hardness (Mohs)
- —
- Color
- —
- Luster
- —
- Streak
- Amber
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- Ia-3
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 4.JK.05
- Dana classification
- 34.5.2.2
- IMA status
- Approved mineral and/or valid name (A)
- IMA symbol
- Wfd
- Locality
- 🇨🇱 Tambo mine
- Type locality
- —
- Discovery year
- —
Etymology
Named after Phillip Walford
Source: Wikidata
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