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Pollucite

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CR61469

Pollucite

Rare Mineral

Description Tabs

Description
Locality: 
Paprook, Nuristan Province, Afghanistan
Size Range: 
Cabinet (10-18 cm)
Size: 
12.5 × 8.5 × 4.5 cm
Largest Crystal: 
2.80cm
Description

Pollucite is a rare species in large crystals, and especially in such size and clarity as this one. It is a mineral rich in cesium, and is in fact the cesium analogue of analcime.The 28mm large glassy crystal is sitting on albite matrix with a large quartz crystal.

Mineral Data
What's on the rock

Pollucite

Formula: 
(Cs,Na)2(Al2Si4O12)·2H2O
Strunz: 
9.GB.05
Hardness: 
6.5
Streak: 
white
Type Locality: 
La Speranza (Pisani's Quarry), San Piero in Campo, Campo nell'Elba, Elba Island, Livorno Province, Tuscany, Italy...