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Mineralpedia Details for Samarskite-(Y)

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Samarskite-(Y)

Samarskite-(Y)

Formula
(Y,Ce,U,Fe,Nb)(Nb,Ta,Ti)O4 
Crystal System
Orthorhombic 
Crystal Habit
Massive 
Cleavage
Imperfect, None, None 
Luster
Vitreous - Resinous 
Color
black, brownish, yellowish brown 
Streak
reddish brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
5-6 
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Samarskite-(Y) from Burroughs mine, Jefferson Co., Colorado, United States

Samarskite-(Y)
            from Burroughs mine, Jefferson Co., Colorado, United States
Special Info
Radioactive!!

Group of parallel stacked crystals with terminations.

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