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Tetranatrolite Gonnardite & Phillipsite-K

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ZLT957292

Tetranatrolite Gonnardite & Phillipsite-K

Description Tabs

Description
Locality: 
Großer Teichelberg, Pechbrunn, Upper Palatinate, Bavaria, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 2 × 1.1 cm
Description

Part of a vug in basaltic matrix with a layer of phillipsite and aggregates of tatranarolite dehydrated to gonnardite, still debated zeolite species.

Mineral Data
What's on the rock

Gonnardite

Formula: 
(Na,Ca)2(Si,Al)5O10·3H2O
Strunz: 
9.GA.05
Hardness: 
4.0 - 5.0
Type Locality: 
La Chaux de Bergonne, Gignat, Saint-Germain-Lembron, Puy-de-Dôme, Auvergne, France

Phillipsite-K

Formula: 
(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Strunz: 
9.GC.10
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Colour: 
White
Streak: 
White
Type Locality: 
Capo di Bove, Rome Province, Latium, Italy

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