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Yttrotantalite-(Y)

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PDM688014

Yttrotantalite-(Y)

Rare Mineral

Description Tabs

Description
Locality: 
Iveland, Agder, Norway
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 2.1 × 1.7 cm
Description

Aggregate of cleaved blackish brown crystals of yttrotantalite-(Y) from this Classic Norwegian locality.

Acquired in 1988. Ex. Dr. Bob Janssens specimen, #1574.

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

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