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Mazzite-Mg

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ZLT623638

Mazzite-Mg

Type Locality

Description Tabs

Description
Locality: 
Mont Semiol, Châtelneuf, Loire, Auvergne-Rhône-Alpes, France
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
0.8 × 2.1 × 1.6 cm
Description

Basaltic rock sample with some vugs, showing long prismatic mazzite-Mg crystals (~1 mm). Very rare zeolite species from type location. Collected 1981.

Mineral Data
What's on the rock

Mazzite-Mg

Formula: 
(Mg,K,Ca)5(Si26Al10)O72·28H2O
Strunz: 
9.GC.20
Hardness: 
4.0 - 5.0
Colour: 
Colorless
Streak: 
White
Type Locality: 
Mont Semiol (Mont Semiouse; Mont Simiouse), Châtelneuf, Saint-Georges-en-Couzan, Loire, Rhône-Alpes, France

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