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Phillipsite-Ca

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PDM787476

Phillipsite-Ca

Gem Crystal

Description Tabs

Description
Locality: 
Campo de Calatrava Volcanic Field, Ciudad Real, Castilla La Mancha, Spain
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2.7 × 1.7 cm
Description

Lustrous spheroidal aggregates of transparent phillipsite-Ca crystals forming divergent radial aggregates. They are associates to smaller white balls of gonnardite. It displays all around 360°. Self-collected in a quarry extracting pozzolanic material in the Campo de Calatrava volcanoes area.

It was 1995, during a trip of the Igneous Petrology course in my University years. Rare locality specimen, cause I was able to recover 3 pieces only. The exact locality will be given to the buyer.

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

Seller Information

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