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Thortveitite

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NST713361

Thortveitite

Description Tabs

Description
Locality: 
Evje Og Hornnes, Agder, Norway
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 2.2 × 2 cm
Largest Crystal: 
2.20cm
Description

A 2.2 cm Thortveitite crystal fragment in feldspar from Evje.

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