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Thomsonite Psm Calcite

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SKI911282

Thomsonite Psm Calcite

Description Tabs

Description
Locality: 
Rupsroth, Hilders, Fulda, Kassel Region, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 3.2 × 1.7 cm
Description

Unusual perimorphs of thomsonite after calcite on phonolite matrix from a lesser known quarry in Rhön mts. Collected by the seller in 2001.

Mineral Data
What's on the rock

Thomsonite

Synonym Of: 

Thomsonite-Ca

Formula: 
NaCa2[Al5Si5O20]·6H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 5.5

Thomsonite-Sr

Formula: 
Na(Sr,Ca)2[Al5Si5O20]·7H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 0.0

Calcite

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

Seller Information

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