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0 item @ $0.00  

Fergusonite

#51887

Fergusonite

#51887
Availability
Sold
Size
3 x 2.5 x 2.5 cm - Thumbnail 
Formula
YNbO4 (RRUFF)
Locality
Berere Pegmatite Field, Bekapaika Commune, Tsaratanàna, Betsiboka, Madagascar
Tagged
REE mineral

A fabulous group of Fergusonite. The chemical formula given below is for Fergusonite-(Y) as I have not had this one tested. On the termination is a fractured off spot, which is actually a good thing since you can see the internal nature. It is metamict, so it doesn't yield any crystal structure internally but the external morphology is preserved. 

Fergusonite

Data courtesy of Webmineral.

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