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Yttropyrochlore-(Y)

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RMM92706

Yttropyrochlore-(Y)

Radioactive

Description Tabs

Description
Locality: 
Evans-Lou Mine, Lac Saint-Pierre, Val-des-Monts, Outaouais, Québec, Canada
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5 × 4.5 cm
Description

Glassy brown yttropyrochlore (pseudomorph fergusonite) in white quartz breccia.

It is moderately radioactive. The pieces weighs 160 grams.

See http://www.mindat.org/photo-351300.html for the microprobe analysis.

Mineral Data
What's on the rock

Yttropyrochlore-(Y)

Synonym Of: 

Yttropyrochlore (of Hogarth 1977)

Formula: 
(Y,Ca,U)1-2(Nb,Ta,Ti)2(O,OH)7
Strunz: 
4.DH.15
Hardness: 
4.5 - 5.5

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