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Yttrotantalite-(Y)

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WND857088

Yttrotantalite-(Y)

Rare Mineral
Classic Locality

Description Tabs

Description
Locality: 
Brevik, Porsgrunn, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 4.3 × 3.6 cm
Description

Rare mineral Yttrotantalite as relatively well developed, sharp and lustrous crystals on matrix. This is a super and large piece of a rare species in large crystals and not a chopped up crumb as usual.

Mineral Data
What's on the rock

Yttrotantalite-(Y)

Formula: 
(Y,Ca,U4+,Fe2+)2(Ta,Nb)2O8
Strunz: 
4.DG.10
Hardness: 
5.0 - 5.5
Streak: 
Grey
Type Locality: 
Ytterby, Resarö, Vaxholm, Uppland, Sweden
Wendel Minerals

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