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Thomsonite-Ca On Calcite

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BRT212210

Thomsonite-Ca On Calcite

Description Tabs

Description
Locality: 
Aranga Quarry, Aranga, Northland Region, North Island, New Zealand
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 3 × 2.2 cm
Description

Very pale green thompsoite overgrowning calcite on matrix

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

Seller Information

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