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Yttrotantalite-(Y) & Gadolinite-(Y)

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SHS140822

Yttrotantalite-(Y) & Gadolinite-(Y)

ex Collection Technical University Stockholm
Type Locality

Description Tabs

Description
Locality: 
Ytterby, Resarö, Vaxholm, Stockholm County, Sweden
Size Range: 
Museum (18cm plus)
Size: 
21 × 8.4 × 6.4 cm
Description

Nice yttrotantalite y and gadolinite y in matrix, old piece from the former technical university of stockholm

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

Gadolinite-(Y)

Formula: 
Y2Fe2+Be2Si2O10
Strunz: 
9.AJ.20
Crystal System: 
Monoclinic
Hardness: 
6.5 - 7.0
Type Locality: 
Ytterby, Resarö, Vaxholm, Uppland, Sweden