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Cavansite 0.90 ct.



54,90 €

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Cavansite 0.90 ct.

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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:8.5x6.9x4.8 mm. Weight:0.90 ct. CODE#3200

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