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Sale Quartz with cristobalite oval ct.7.50

Quartz with cristobalite oval ct.7.50

#1401

New

58,56 €

-20%

73,20 €

1 left in stock

Quartz with cristobalite oval ct.7.50

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Quartz with Cristobalite and Goethite The Cristobalite is one of the three silica forms, it crystallized at an higher temperature compare to quartz: 1710C° instead for the quartz is 870 C° and the tridimite is 1470C°. Generally the crystals are fibrous-rounded balls and in this amethyst are very visible. Unusual stone for collector. From Brazil. Size: 13.5x11x6.6 mm. Weight: 7.50 ct. CODE# 1401
Weight7.5
OriginBrasile

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