Colour-change diaspore

A generic name given to diaspore showing a noticable colour-change effect under different light sources. Material from turkey (the only gem source currently) is sold under a variety of trade names.
General Information
A variety or type of:Diaspore
Other Names/Trade Names:
Spectrographic Data
Calculated Spectra:
Click spectra for more information
Colour-change diaspore - Locality: Turkey
Further Information
Mineral information:Colour-change diaspore information at
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