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Gmelinite-K On Chabazite-Ca & Thomsonite-Ca

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ZLT218940

Gmelinite-K On Chabazite-Ca & Thomsonite-Ca

Description Tabs

Description
Locality: 
La Aldea de San Nicolás, Gran Canaria, Las Palmas Province,, Canary Islands, Spain
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 2.4 × 2.1 cm
Largest Crystal: 
0.90cm
Description

Chabzite-Ca crystal in the phacolite form with a epitaxial overgrowth of gmelinite-K and some yellowish thomsonite-Ca.

Mineral Data
What's on the rock

Gmelinite-K

Formula: 
(K2,Na2,Ca)[Al2Si4O12]·6H2O
Strunz: 
9.GD.05
Crystal System: 
Hexagonal
Hardness: 
4.5
Type Locality: 
Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Chabazite-Ca

Formula: 
(Ca,K2,Na2)2[Al2Si4O12]2·12H2O
Strunz: 
9.GD.10
Hardness: 
4.0 - 5.0
Streak: 
White
Type Locality: 
Colle del Lares, San Nicolò Valley, Buffaure Group, Fassa Valley, Trento Province, Trentino-Alto Adige, Italy

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

Seller Information

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