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Aragonite 6.43 ct.



250,00 €

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Aragonite 6.43 ct.

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Is a Calcium Carbonate with formula and hardness of 3.5-4.I s a polymorph of calcite,that means :same chemical composition but different structure and crystal shape,and is also more compact than calcite and much rarer.Crystals are generally small.This gem here comes from Herenec locality,Northern Bohemia,Czech Republic. 

Size:12x10-8x7.6 mm.

Weight:6.43 ct.


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