Mineralpedia Details for Allanite-(Y)
Allanite-(Y)
- Formula
- CaYFe2+Al2(Si2O7)(SiO4)O(OH)
- Crystal System
- Monoclinic
- Crystal Habit
- Massive - Granular, Disseminated
- Cleavage
- Imperfect, Imperfect, None
- Luster
- Vitreous - Greasy
- Color
- brown, black
- Streak
- grayish brown
- Class
- Monoclinic - Prismatic
- Fracture
- Conchoidal
- Hardness
- 5.5
- WebMineral
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Localities of Allanite-(Y)
No localitiy information available.
