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Fergusonite-(Y)

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ZLT139135

Fergusonite-(Y)

Description Tabs

Description
Locality: 
In den Dellen Quarries, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
0.7 × 1.2 × 1.1 cm
Description

Small fraction from a sanidinite ejection block with a well shaped dark olive crystal (~1 mm) of fergusonite-Y. From a find in 2005.

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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