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Heulandite-Ca

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ZLT619061

Heulandite-Ca

Description Tabs

Description
Locality: 
Ósfjall, Breiðdalsvík, Fjarðabyggð, Eastern Region, Iceland
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
2.5 × 4.5 × 4.5 cm
Description

Half of am amygdale lined with heulandite-Ca crystals, as weathered out from basaltic matrix. Collected from the gravel.

Mineral Data
What's on the rock

Heulandite-Ca

Formula: 
(Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Strathclyde (Dunbartonshire), Scotland, UK

Seller Information

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