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Fergusonite-(Y)

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PDM724286

Fergusonite-(Y)

Description Tabs

Description
Locality: 
Betafo, Vakinankaratra, Madagascar
Class: 
Crystal Group/Cluster
Size Range: 
Micromount (under 1cm)
Size: 
0.8 × 0.6 × 0.5 cm
Description

12 black rounded eroded crystals of fergusonite-(Y) from Madagascar that reach 8 mm.

Acquired in 1976 by Francois Verhallen.

Mineral Data
What's on the rock

Fergusonite-(Y)

Formula: 
YNbO4
Strunz: 
7.GA.05
Hardness: 
5.5 - 6.5
Type Locality: 
Kangeq, Sermersoq Island, Kujalleq, Greenland

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