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Natrolite

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PCZ131656

Natrolite

Description Tabs

Description
Locality: 
Little Deerpark Quarry, Glenarm, County Antrim, Northern Ireland, United Kingdom
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 7 × 5 cm
Description

A 4.0 x 3.2cm area of well terminated radiating natrolite balls on basalt matrix. The main ball (0.8cm) has a snow white gonnardite core that can clearly be seen through the transparant natrolite.

Mineral Data
What's on the rock

Natrolite

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