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Thomsonite With Calcite

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JYJ70453

Thomsonite With Calcite

Description Tabs

Description
Locality: 
Alter Stein Quarry, Allendorf, Greifenstein, Lahn-Dill, Giessen Region, Hesse, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 2.5 × 0.7 cm
Description

Another very showy thumbnail of this beautiful combination. Sparkling white thomsonite with interesting calcite combo.

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