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Alunite

- Formula
- KAl3(SO4)2(OH)6
- Crystal System
- Trigonal
- Crystal Habit
- Massive - Granular, Earthy, Fibrous
- Cleavage
- Good, None, None
- Luster
- Vitreous - Pearly
- Color
- white, gray, yellowish gray, reddish gray, yellowish white
- Streak
- white
- Class
- Trigonal
- Fracture
- Uneven
- Hardness
- 3.5-4
- WebMineral
- View Alunite
- Mindat
- View Alunite
Localities of Alunite
No localitiy information available.