Mineralpedia Details for Allanite-(Ce)
Allanite-(Ce)
- Formula
- CaCeFe2+Al2(Si2O7)(SiO4)O(OH)
- Crystal System
- Monoclinic
- Crystal Habit
- Massive - Granular, Disseminated
- Cleavage
- Imperfect, Imperfect, None
- Luster
- Vitreous - Greasy
- Color
- brown, reddish brown, black
- Streak
- grayish brown
- Class
- Monoclinic - Prismatic
- Fracture
- Conchoidal
- Hardness
- 5.5
- WebMineral
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- Mindat
- View Allanite-(Ce)
Allanite-(Ce) from Trimouns Talc mine, Luzenac, Ariège, Midi-Pyrénées, France
Reddish brown crystal group with terminations. Good for allanite. Ex. Georg Gebhard.
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Allanite-(Ce) from Franklin, Sussex Co., New Jersey, United States
Small 3-6mm black tabular crystals in light green Microcline matrix. It is much as Dunn described. This is a large specimen.
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Allanite-(Ce) from Olden Township, Frontenac Co., Ontario, Canada
Excellent single crystal of brown Allanite showing three faces at the terminations.
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