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Thomsonite-Ca

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ZLT195741

Thomsonite-Ca

Description Tabs

Description
Locality: 
Krossdalur, Norðdepil, Borðoy Island, Faroe Islands, Denmark
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 6.5 × 3 cm
Description

Part of a vug in basaltic matrix lined with hemispheres of thomsonite-Ca (faroelite). From loose boulders at a mountain valley. Collected 2003.

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

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