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Analcime

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PCZ127252

Analcime

Description Tabs

Description
Locality: 
Port Muck, Island Magee, County Antrim, Northern Ireland, United Kingdom
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 5.5 × 3.5 cm
Description

Analcime is a common zeolite however, some of these crystals, when observed from the side are clearly black and not just showing the underlying matrix. The crystals are highly reflective and rest long narrow vug lining on one side of the matrix.

Mineral Data
What's on the rock

Analcime

Formula: 
Na2(Al2Si4O12)·2H2O
Strunz: 
9.GB.05
Crystal System: 
Triclinic
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy
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