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Erionite-Na

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CSL508212

Description Tabs

Description
Locality: 
Chojabaru, Nagasaki Prefecture, Kyushu Region, Japan
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 1.6 × 1.4 cm
Description

This is a very nice small miniature specimen of sodium rich zeolite mineral erionite-Na. It forms white hexagonal platy crystals on alkaline basalt matrix.

Mineral Data
What's on the rock

Erionite-Na

Formula: 
(Na2,K2,Ca)2[Al4Si14O36]·15H2O
Strunz: 
9.GD.20
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Colour: 
White
Streak: 
White
Type Locality: 
Cady Mts, San Bernardino Co., California, USA

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