Colour-change diaspore
The mineralogically correct name for the gem sold as Zultanite, Csarite, Ottomanite or Turkizite: gem diaspore that shifts colour with the light source.
The mineralogically correct name for the gem sold as Zultanite, Csarite, Ottomanite or Turkizite: gem diaspore that shifts colour with the light source.
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