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Thomsonite-Ca & Calcite

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MEX564223

Thomsonite-Ca & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Arensberg, Zilsdorf, Hillesheim, Vulkaneifel, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.9 × 3.8 × 2.9 cm
Weight: 
76.00gr
Description

Nice specimen with crystalballs of thomsonite ca. All clusters shows the typical crystal faces of thomsonite ca.

Mineral Data
What's on the rock

Thomsonite-Ca

Formula: 
NaCa2[Al5Si5O20]·6H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Old Kilpatrick, Strathclyde (Dunbartonshire), Scotland, UK

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White
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