Hackmanite 2 stone set 4.090ct rough stone (different colors)

Rare stone, hackmanite. It has a strange feature: when you expose it to a black light for about 5 to 10 seconds, the color changes to a pale purple, and it does not return to its original color for a while. This is a relatively new type of rare stone that was discovered on the Kola Peninsula in Russia in the 1980s. Since the hardness is low, you need to be careful not to hit it against hard objects. A set of 2 Hackmanite stones in different colors.

・Type: Raw stone ・Stone name: Hackmanite
・Weight: 4.090ct
・Scratches/chips: - ・Inclusion: - ·remarks:---
・Accessories: Karatz quality guarantee card, case

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karatz_item_id: 12531648