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Fluorite & Heulandite-Ca

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CR641841

Fluorite & Heulandite-Ca

Classic Locality

Description Tabs

Description
Locality: 
Gibelbach, Fiesch, Goms, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 4.8 × 4 cm
Largest Crystal: 
1.00cm
Description

Sharp and lustrous  pale green fluorite octahedron very rich on matrix with a gemmy and lustrous heulandite-Ca crystal on top..

Very nice old specimen from Wolfgang Schneider colletion.

Mineral Data
What's on the rock

Heulandite-Ca

Formula: 
(Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Strathclyde (Dunbartonshire), Scotland, UK

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic