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Gmelinite-Na & Natrolite

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PDM748205

Gmelinite-Na & Natrolite

Description Tabs

Description
Locality: 
Flinders Area, Victoria, Australia
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.2 × 5.5 × 4.2 cm
Description

Big block of basaltic lava which vacuoles have been differentially filled by diverse species, mainly bright orange gmelinite-Na crystals and lustrous white acicular crystals of natrolite and some calcite.

Acquired in 1993. Ex. Lucien Jusgen collection.

Mineral Data
What's on the rock

Gmelinite-Na

Formula: 
(Na2,Ca)[Al2Si4O12]·6H2O
Strunz: 
9.GD.05
Crystal System: 
Hexagonal
Hardness: 
4.5
Type Locality: 
Nero Mt., San Pietro, Montecchio Maggiore, Vicenza Province, Veneto, Italy

Natrolite

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

Seller Information

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