Alexandrite

A green chromian variety of chrysoberyl; exibits a colour change in natural and artificial light. Named in 1842 by Nils Adolf Erik Nordenskiöld in honour of Alexander II of Russia.

See:

Chrysoberyl

Alexandrite — specimen 0288, photo © NMNHS

Material from ‘Repository’

1 specimen: 0288 — 0.50 ct, Brazil, Minas Gerais, Antônio Dias, Hematita.

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Gemmology — gemstones
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The specimens illustrated in this site do not exist in the collections of the National Museum of Natural History, Sofia.