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Natrolite & Sphalerite

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CFL829250

Natrolite & Sphalerite

Fluorescent

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.5 × 6.5 × 4 cm
Description

Superb aggregate specimen of fluorescent translucent to gemmy natrolite crystals, up to 2 cm long, associated with grey-green sphalerite crystals, up to 7 mm in size, and black amphibole.  It is quite uncommon to find sphalerite with these natrolites.  Collected by Gilles Haineault in 2017.

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

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

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