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Cavansite
Is a beautiful small mineral with formula: Ca(VO)Si4O10(H2O)4 , a Hydrated Calcium Vanadium Silicate .
The hardness is 3-4 and rarely found in facet gems due to his difficulty in cutting and polishing. Crystal aggregates consist of spherical rosettes with pointed crystals.
It comes from Poona district ,India; a famous zeolites locality .
Impossible to have clean stones, always translucent with small cavities.
A collector stone!
Size: 14x9.6x6.2 mm.
Weight: 3.99 ct.
CODE#8998
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