Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Gonnardite & Phillipsite-Ca

Views:
Watches:
GFM786841

Gonnardite & Phillipsite-Ca

Description Tabs

Description
Locality: 
Klöch, Südoststeiermark District, Styria, Styria, Austria
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.6 × 4.4 × 2.3 cm
Description

the uncommon Zeolite mineral forms white silky luster radial acicular isolated crystal aggregates of 1 cm, together with white Phillipsite-Ca crystals on large cavities in Basalt matrix. Outstanding good specimens collect around 1985

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-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