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Heulandite-Ca

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Watches:
CR30975

Heulandite-Ca

With Antique Label

Description Tabs

Description
Locality: 
Teigarhorn, Berufjord, Djúpavogshreppur, Eastern Region, Iceland
Size Range: 
Cabinet (10-18 cm)
Size: 
13.5 × 12 × 7 cm
Largest Crystal: 
2.50cm
Description

Very good and beautiful old time specimen with gemmy and high lustrous heulandite crystals.

Very good display specimen with nice old label.

Collected 1919 !

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