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Hackmanite 3.67 ct.



36,00 €

1 left in stock

Hackmanite cab. 3.67 ct.

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Hackmanite cabochon

Is a rare sodalite variety with the property of change color is charged with ultra violet light ( either short or long wave): from grey-bluish will turn hot- pink-lavender and will retain this color for hours or days .This phenomenon is called “tenebrescens” from Latin word referring to darkness, also can be called “photocromic” and this process is reversible infinitely .Has been found in Greenland, Russia, USA Afghanistan; this piece comes from Pakistan.This photo has been taken before, during and right after exposure to ultraviolet light long wave-

Size:12.2x9.4x5.2 mm.

Weight:3.67 ct.



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