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Amethyst with Cristobalite 8.89 ct.

#8187

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300,00 €

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Amethyst with Cristobalite  8.89 ct.

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Amethyst with Cristobalite

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.

Size: 13x11.9x8 mm.

Weight: 8.89 ct.

CODE#8187

OriginBrasile

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