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Erionite-K & Clinoptilolite-Ca

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ZLT630229

Erionite-K & Clinoptilolite-Ca

Description Tabs

Description
Locality: 
Rock Island Dam, Washington, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 2 × 2.1 cm
Description

Selected rock sample with two vugs showing erionite-K and clinoptilolite-Ca. Colleceted 1979.

Mineral Data
What's on the rock

Erionite-K

Formula: 
(K2,Ca,Na2)2[Al4Si14O36]·15H2O
Strunz: 
9.GD.20
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Type Locality: 
Rome, Marion Co., Oregon, USA

Clinoptilolite-Ca

Formula: 
(Ca,Na,K)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Kuruma Pass, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan

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