Alexandrite (Color changing Chrysoberyl) mineral specimen. UVLW. TL, Ural Russia

Description

Alexandrite
(color changing Chrysoberyl)
mineral specimen.
Type Locality
Green chromian variety of chrysoberyl (intermediate member of Chrysoberyl-Mariinskite series) that exhibits a color change in natural and artificial light from green to amethystine (Alexandrite effect).
Locality
:
Emerald mines (Izumrudnye Kopi; Malyshevskoye deposit), Malyshevo, Ekaterinburg (Yekaterinburg; Sverdlovsk), Sverdlovskaya Oblast', Urals Region, Russia.
Size:
22 x 17 x 16 mm / 0.86 x 0.67 x 0.63 inch
Weight
: 54 ct
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