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Phillipsite-Na

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QRI784735

Phillipsite-Na

Former collection Christian Mavris
Classic Locality

Description Tabs

Description
Locality: 
Aci Castello, Etna, Catania Province, Sicily, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.6 × 5.5 × 4.7 cm
Largest Crystal: 
0.10cm
Weight: 
119.00gr
Description

A rich vug laden with candid white phillipsite crystals on volcanic. Good lustre for the specie and locality.

Fortuitously found when I was a geology student in 2003. It was a pebble at the base of Aci Castello rock formation (no digging allowed). Given the freshness of the phillipsite, it must have been somehow protected and not exposed to weathering. In my personal collection ever since.

Mineral Data
What's on the rock

Phillipsite-Na

Formula: 
(Na,K,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: 
Rupe di Aci Castello, Aci Castello, Etna Volcanic Complex, Catania Province, Sicily, Italy

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