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Phacolite Analcime Thomsonite & Mesolite

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CSW197536

Phacolite Analcime Thomsonite & Mesolite

Description Tabs

Description
Locality: 
County Londonderry, Northern Ireland, United Kingdom
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 6 × 6 cm
Description

Basalt matrix with amygdales lined with golden brown saponite and an overgrowth of colourless chabazite var phacolite crystals, opaque white analcime crystals, colourless to orange thomsonite crystals and colourless hair-like mesolite crystals. A very nice suite of zeolite minerals.

Mineral Data
What's on the rock

Analcime

Formula: 
Na2(Al2Si4O12)·2H2O
Strunz: 
9.GB.05
Crystal System: 
Triclinic
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy

Thomsonite

Synonym Of: 

Thomsonite-Ca

Formula: 
NaCa2[Al5Si5O20]·6H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 5.5

Thomsonite-Sr

Formula: 
Na(Sr,Ca)2[Al5Si5O20]·7H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 0.0

Mesolite

Formula: 
Na2Ca2Si9Al6O30·8H2O
Strunz: 
9.GA.05
Hardness: 
5.0

Seller Information

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