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Thomsonite-Ca & Natrolite

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Thomsonite-Ca & Natrolite

Ex. Ed Richards Collection (Vic, Aust)

Description Tabs

Description
Locality: 
Flinders Ranges, South Australia, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 3.7 × 3.3 cm
Description

Nice for the species and locality. These zeolite minerals combite to produce an interesting display and is even better under a microscope.

Rich coverage over the whole display side on a matrix of brown weathered basalt.

Mineral Data
What's on the rock

Thomsonite-Ca

Formula: 
NaCa2[Al5Si5O20]·6H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Old Kilpatrick, Strathclyde (Dunbartonshire), Scotland, UK

Natrolite

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