
Incolore Quarzo con tormalina verde trasparente e rutilo rosso brunastro - 17.70 ct
Quartz with microinclusions of covellite crystals. This is the famous Pink Fire quartz. Pink Fire is one of the rarest and more exciting gemstone. The inclusions are tiny crystals of covellite, a rare copper sulfide (CuS). The amazing pink shine is visible just from few angles because the covellite crystals are iso-oriented in a epitactic growth over a phantom face of the quartz crystal. The phenomenon is similar to the schiller effect of sunstone, but has been proposed as a new optical effect.
Hard to find piece for high level collector.
Shape: Square faceted cut
Dimensions : 9,7x9,7x4,7 mm
Weight: 4.25 ct
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