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Analcime

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QRI1078771

Analcime

Description Tabs

Description
Locality: 
Chetaibi, Wilaya de Skikda, Annaba Province, Algeria
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.8 × 0.7 cm
Largest Crystal: 
0.50cm
Weight: 
8.00gr
Description

In late 2019 I have come across this very interesting small lot of analcime from the locality of Chetaibi, Algeria.

In this very specimen, a dozens of fully transparent and lustrous analcime crystals populae a thin speck of white matrix. 

I have never seen those specimens on the market before 2019, and I think they do set a high standard among African analcime. From a small find from a Swiss engineer in the 60s (possibly from a roadcut?), only a few specimens were recovered.

This is one of the best of the entire lot.

Pasted Label
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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