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Diaspore & Natrolite

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MCH667040

Diaspore & Natrolite

Description Tabs

Description
Locality: 
Saga #1 Quarry, Sagåsen, Mørje, Porsgrunn, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3 × 1.5 cm
Description

An approx. 1.5 cm cavity within a natrolite rock (called Spreustein) is filled with numerous intense dark purple coloured, translucent diaspore crystals and some acicular natrolite crystals as well. There is also an olive green coloured crystal on this specimen with unknown composition.

Mineral Data
What's on the rock

Diaspore

Formula: 
AlO(OH)
Strunz: 
4.FD.10
Hardness: 
6.5 - 7.0
Streak: 
white
Type Locality: 
Mramorskii Zavod (Mramorsk Zavod), Kosoi Brod Village, Ekaterinburg (Sverdlovsk), Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...

Natrolite

Formula: 
Na2Al2Si3O10·2H2O
Strunz: 
9.GA.05
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Hohentwiel, Singen, Hegau, Baden-Württemberg, Germany

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