alexandrite

== English == === Etymology === From Alexander +‎ -ite, named after Alexander II of Russia. === Pronunciation === (US) enPR: ăl'-ĭg-zăn'-drīt, IPA(key): /ˌæl.ɪɡˈzæn.dɹaɪt/ === Noun === alexandrite (countable and uncountable, plural alexandrites) (mineralogy) A form of chrysoberyl that displays a colour change dependent upon the light source, along with strong pleochroism. ==== Translations ==== === Further reading === David Barthelmy (1997–2026), “Alexandrite”, in Webmineral Mineralogy Database. “alexandrite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.