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Apophyllite 7.64 ct.

#4750

New

650,00 €

1 left in stock

Apophyllite  7.64 ct.

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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.

Eye clean, cut by Luigi Marian, a top quality stone!

Size:14.1x10.7x9,5 mm.

Weight:7.64 ct.

CODE#4750

OriginIndia

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