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Natrolite

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MGR743741

Natrolite

Description Tabs

Description
Locality: 
Berufjörður, Djúpavogshreppur, Eastern Region, Iceland
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.1 × 6 × 4.3 cm
Description

In the center of the specimen you can see a free-standing spray of stalactites covered with snowy white natrolite. I guess that there are quartz crystals underneath the natrolite. This is really an exceptional rarity - Iceland generally produce not too many minerals, Natrolite is one of the most rare and this particular sample is for sure the best I have ever seen from Iceland. No significant damages to report.

Mineral Data
What's on the rock

Natrolite

Formula: 
Na2Al2Si3O10·2H2O
Strunz: 
9.GA.05
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Hohentwiel, Singen, Hegau, Baden-Württemberg, Germany
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