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Minasgeraisite-(Y)

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JYJ552291

Minasgeraisite-(Y)

Description Tabs

Description
Locality: 
Heftetjern Pegmatite, Tørdal, Drangedal, Vestfold og Telemark, Norway
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 1.5 × 1.2 cm
Description

Yellow masses of minasgeraisite-Y in vugs of feldspar matrix. Was recently described from the Heftetjern pegmatite.

Mineral Data
What's on the rock

Minasgeraisite-(Y)

Formula: 
CaBe2Y2Si2O10
Strunz: 
9.AJ.20
Crystal System: 
Monoclinic
Hardness: 
6.0 - 7.0
Type Locality: 
Jaguaraçu pegmatite (José Miranda mine; José Pinto mine; Carneirinho mine), Jaguaraçu, Minas Gerais, Brazil