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Vorobyevite gem+crystal 0.84 ct. +2-40 ct.



290,00 €

1 left in stock

Vorobyevite  gem+crystal  0.84 ct. +2-40 ct.

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is a recently discovered beryl containing Cesium as impurity with formula Be3Al2(Si6O18) .

There is debate regarding Pezzottaite vs Vorobyevite and choromophores , Cesium cannot be responsible for any colors, instead the bluish color of Vorobyevite is due to iron traces,as far as I know.This question remain open and more studies need to be done in order to find out the true. Nevertheless is a quite rare and interesting gem material; only small stones can be cut and often cloudy or included with parallel tubes-like with sometimes cat's eye effect.

It comes from Badakshan Province,Afghanistan and here is offered together with a natural crystal.

Size: cut stone> 6.5x6.7x3.6 mm.

Weight: 0.84 ct.
size of crystal: 7x9.5 mm  
weight of crystal : 2.40 ct.



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