RARE COLOR CHANGE GEMSTONE: DIASPORE. ...

Description

RARE COLOR CHANGE GEMSTONE: DIASPORE
Rough & Cut Set
Mugla Province, Aegean Region, Turkey
Diaspore is a hydrated aluminum oxide colored by Manganese and was first faceted as a gemstone in the 1980's. It has a hardness of 6.5 to 7 and does have perfect cleavage in one direction, making it a challenge to facet. Gems that change color under different lighting are rare and Diaspore has this unique quality. Under natural or fluorescent light, it is a kiwi green color, with flashes of yellow, under incandescent lighting it is a champagne color, and in subdued lighting it has a pinkish color. Gem Diaspore has only been found in Turkey, the source of both of these specimens. The oval Diaspore gemstone weighs 4.43 carats and measures 11.58 x 7.5 mm. It is matched with a very fine "V" twinned, terminated thumbnail Diaspore crystal that measures 28.8 x 21.9 mm and has gemmy zones.

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