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Analcime

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NST656827

Analcime

Classic Locality

Description Tabs

Description
Locality: 
Duingen Clay Pit, Alfeld, Hildesheim, Lower Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3.2 × 2 cm
Largest Crystal: 
1.40cm
Description

Older specimen of analcime up to 1.4 cm from this interesting sedimentary occurence. The main crystal is sharp but not complete on the back side.

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