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Gonnardite & Phillipsite

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CLB112514

Gonnardite & Phillipsite

ex coll. Wittig
Classic Locality

Description Tabs

Description
Locality: 
Arensberg, Zilsdorf, Hillesheim, Vulkaneifel, Rhineland-Palatinate, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
10.1 × 6 × 4.4 cm
Description

Very rich specimen with white balls of gonnardite on transparent, colorless phillipsite. The specimen is not analyzed, so I think there might be a chance, that the gonnardite may be even tacharantite.

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

Synonym Of: 

Phillipsite-Ca

Formula: 
(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32 . 12H2O
Strunz: 
9.GC.10
Hardness: 
4.0 - 5.0

Phillipsite-K

Formula: 
(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Strunz: 
9.GC.10
Hardness: 
4.0 - 5.0

Phillipsite-Na

Formula: 
(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32]·12H2O
Strunz: 
9.GC.10
Hardness: 
4.0 - 5.0
Group Parent: 
Zeolite Group

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