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Zoisite Var Thulite & Amazonite

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MCH510540

Zoisite Var Thulite & Amazonite

Description Tabs

Description
Locality: 
Dindalen, Oppdal, Trøndelag, Norway
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.6 × 5.9 × 3.5 cm
Description

Thulite is the „National Stone of Norway“ and has been used as gemstone and for the manufacturing of gemstone products since many years. There are several different occurences of thulite in Norway, each with its specific characteristics.

Here we have a quarzitic gneis (probably a pegmatitic lense), which is banded with impregnations of pink thulite alternating with green amazonite. Quite a colourful and rare combination from an unusual locality which is located north of Snøfjellkollan in Dindalen, today area of a national park. The specimen was found in 1990 and is out of the collection of a local collector.

Mineral Data
What's on the rock

Zoisite

Formula: 
{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.10
Hardness: 
6.0 - 7.0
Streak: 
White
Type Locality: 
Prickler Halt, Ladinger Spitze - Speikkogel area, Saualpe, Carinthia, Austria

Thulite

Variety Of: 

Zoisite

Formula: 
{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.10
Hardness: 
6.0 - 7.0
Hardness: 
0.0
Colour: 
pink
Type Locality: 
Øvstebø, Kleppan, Sauland, Hjartdal, Telemark, Norway

Amazonite

Variety Of: 

Microcline

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0 - 6.5
Hardness: 
0.0

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