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Thortveitite & Gadolinite-(Y)

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SYA773672

Thortveitite & Gadolinite-(Y)

Classic Locality

Description Tabs

Description
Locality: 
Frikstad Quarries, Iveland, Agder, Norway
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.5 × 2 cm
Largest Crystal: 
1.50cm
Description

A grey-green thortveitite crystal together with dark brown lustrous gadolinite-Y in feldspar. 

Mineral Data
What's on the rock

Thortveitite

Formula: 
(Sc,Y)2Si2O7
Strunz: 
9.BC.05
Crystal System: 
Monoclinic
Hardness: 
6.0 - 7.0
Streak: 
white
Type Locality: 
Ljoslandsknipan (Thortveitittgruva), Knipan (Knipane), Ljosland, Iveland, Aust-Agder, Norway

Gadolinite-(Y)

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

Seller Information

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