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Pollucite

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SKY1000334

Pollucite

Rare Mineral

Description Tabs

Description
Locality: 
Karibib District, Erongo Region, Namibia
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1 × 1 cm
Description

Pure specimen of the very rare cesium mineral pollucite from Namibia.

Only 31 cesium containing minerals exist from a total of 5960 IMA approved mineral species !!  (source Mindat ).

Ex Vandenbroucke Museum collection from Waregem, Belgium.

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...

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