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#4677
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100,00 €
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Amethyst with cristobalite 8.46 ct.
Amethyst with cristobalite 8.46 ct.Recipient :
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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: 18.6x10x6.8 mm.
Weight: 8.46 ct.
CODE# 4677
Origin | Brasile |