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Heulandite-Na

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Heulandite-Na

Classic Locality

Description Tabs

Description
Locality: 
Wolf Creek Pass, Creede, Mineral County, Colorado, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.1 × 0.8 cm
Description

specimen with groups of fantastic orange crystals of uncommon heulandite-(Na) 

the specimen come from the personal collection of Luigi Chiappino

Mineral Data
What's on the rock

Heulandite-Na

Formula: 
(Na,Ca)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.0 - 3.5
Streak: 
White
Type Locality: 
Unnamed pit, Challis, Bay Horse District, Custer Co., Idaho, USA

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