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Datolite & Quartz

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MGR1022141

Datolite & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Obersulzbach Valley, Zell am See District, Salzburg, Austria
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.3 × 4.1 cm
Description

This is an exceptinal rarity! Several alpine datolite crystals in combination with clear rock crystals. Datolite from alpine clefts are exceptional and should be high ranked for their rarity.

Mineral Data
What's on the rock

Datolite

Formula: 
Ca(HBSiO5)
Strunz: 
9.AJ.20
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Nødebro Mine (Nøddebro), Arendal Iron Mines, Arendal, Aust-Agder, Norway

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White