Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Thomsonite-Ca & Analcime

Views:
Watches:
CR176761

Thomsonite-Ca & Analcime

Type Locality

Description Tabs

Description
Locality: 
Cyclopean Islands, Aci Trezza, Etna, Catania Province, Sicily, Italy
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 3.5 cm
Description

This is a very old and good specimen hosting beautiful and sharp, gemmy thomsonite-Ca crystals together with gemmy clear analcime crystals.

Collected 1892 (!) from the type locality of analcime.

Ex Naturhistoric Museum Stockholm - with beautiful old label.

Mineral Data
What's on the rock

Thomsonite-Ca

Formula: 
NaCa2[Al5Si5O20]·6H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Old Kilpatrick, Strathclyde (Dunbartonshire), Scotland, UK

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
Item Toolbox