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Ewaldite & Natrolite

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Ewaldite & Natrolite

Rare Mineral

Description Tabs

Description
Locality: 
Kirovskii Mine, Kukisvumchorr Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
2.8 × 4.8 × 3.5 cm
Description

Tan colored rounded ewaldite crystals on natrolite

Mineral Data
What's on the rock

Ewaldite

Formula: 
Ba(Na,Ca,Y,Ce,K)(CO3)2·2.6H2O
Strunz: 
5.CC.05
Crystal System: 
Hexagonal
Hardness: 
0.0
Type Locality: 
Diamond Alkali Daco No. 3, Green River Formation, Sweetwater Co., Wyoming, USA

Natrolite

Formula: 
Na2Al2Si3O10·2H2O
Strunz: 
9.GA.05
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Hohentwiel, Singen, Hegau, Baden-Württemberg, Germany