Alexandrite

Alexandrite

Carnaíba mining district, Pindobaçu, Campo Formoso ultramafic complex, Bahia, Brazil

Alexandrite

Carnaíba mining district, Pindobaçu, Campo Formoso ultramafic complex, Bahia, Brazil

Alexandrite

Malacacheta district, Jequitinhonha valley, Minas Gerais, Brazil

Tsar Alexander II

Formula:

BeAl2O4

Name:

Named in 1842 by Nils Adolf Erik Nordenskiöld in honor of Alexander II (1818-81), Czar of Russia, 1855-81.

A variety of Chrysoberyl

Green chromian variety of chrysoberyl (intermediate member of Chrysoberyl-Mariinskite series) that exibits a color change in natural and artificial light from green to amethystine (Alexandrite effect).

Originally reported from Emerald mines (Izumrudnye Kopi; Malyshevskoye deposit), Malyshevo, Ekaterinburg (Yekaterinburg; Sverdlovsk), Sverdlovskaya Oblast', Urals Region, Russia.