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Euxenite-(Y)

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UVM648741

Euxenite-(Y)

Radioactive

Description Tabs

Description
Locality: 
Caterpillar Tractor Testing Grounds, Maricopa County, Arizona, United States of America
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 2.7 × 1 cm
Description

Resinous brown euxenite in pegmatite matrix, from the now defunct Caterpillar proving grounds near Phoenix, Arizona.   While testing the earthmoving equipment, small outcroppings of euxenite would occasionally be found.   Thankfully some employee of the company was amiable to mineral collectors and supplied some of this material to Dave Shannon and Dr. Ray Grant.    

Mineral Data
What's on the rock

Euxenite-(Y)

Formula: 
(Y,Ca,Ce,U,Th)(Nb,Ti,Ta)2O6
Strunz: 
4.DG.05
Hardness: 
5.5 - 6.5
Type Locality: 
Undisclosed pegmatite, Jølster, Sogn og Fjordane, Norway

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