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1 item @ $40.00  

Mineralpedia Details for Ishikawaite

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Ishikawaite

Ishikawaite

Formula
(U,Fe,Y)NbO4 
Crystal System
Orthorhombic 
Crystal Habit
Metamict 
Cleavage
None, None, None 
Luster
Resinous 
Color
black 
Streak
dark brown 
Class
Orthorhombic 
Fracture
Brittle - Conchoidal 
Hardness
5-6 
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Ishikawaite from Swamp No. 1 quarry, Topsham, Sagadahoc Co., Maine, United States

Ishikawaite
            from Swamp No. 1 quarry, Topsham, Sagadahoc Co., Maine, United States

Grey prismatic crystals from 2-5mm in orange-rusty red Monazite. Excellent specimen. This is a niobium-yttrium-fluorine type of pegmatite.

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