Lanarkite
Pb₂O(SO₄)
Sulfates
Hardness —
· Monoclinic
Ammoniojarosite
(NH)₄Fe³⁺₃(SO₄)₂(OH)₆
Alunite supergroup, sulfate mineral
Properties
- Chemical formula
- (NH)₄Fe³⁺₃(SO₄)₂(OH)₆
- Group
- Sulfates
- Crystal system
- Trigonal
- Hardness (Mohs)
- —
- Color
- —
- Luster
- —
- Streak
- —
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- R-3m
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 7.BC.10
- Dana classification
- 30.2.5.4
- IMA status
- Redefined mineral (Rd)
- IMA symbol
- Ajrs
- Locality
- 🇺🇸 Kane County
- Type locality
- —
- Discovery year
- —
Etymology
Named after jarosite
Source: Wikidata
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