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Phillipsite-Ca & Gonnardite

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PAV935164

Phillipsite-Ca & Gonnardite

New Discovery

Description Tabs

Description
Locality: 
Fajã Escura, Curral das Freiras, Câmara de Lobos, Madeira Islands, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 1.8 × 2.1 cm
Description

Rich phillipsite-Ca sample!

Lots of white groups associated to fibrous gonnardite.

Collected: 
2022
Boxed with Label
Mineral Data
What's on the rock

Phillipsite-Ca

Formula: 
(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32 . 12H2O
Strunz: 
9.GC.10
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Streak: 
White
Type Locality: 
Lower Salt Lake Tuff, Puuloa Road, Oahu Island, Honolulu Co., Hawaii, USA

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