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Apophyllite ct. 3.75

#2206

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146,40 €

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Apophyllite ct. 3.75

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Apophyllite A popular mineral among collectors who has been recently re-considered : check http://www.mindat.org/min-283.html Is a Hydrated Potassium Calcium Sodium Silicate Fluoride Hydroxide with formula (K,Na)Ca4Si8O20(F,OH) - 8H2O . Although is quite common in natural crystal, is very difficult to cut and polish, due to his easy cleavage: a challenge for the cutters. The hardness is 4.5-5 and this gem here comes from a classic locality: Poona,India. A very small flaw is visible at naked eye Size:10x9.7x7.6 mm. Weight: 3.75 ct. CODE# 2206
Weight3.75
OriginIndia

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