One of the mysteries of the English language finally explained.
A gem variety of chrysoberyl which appears green in daylight and red in artificial light.
- ‘He rains light kisses all over her face and neck, taking her hand and sliding a beautiful diamond and alexandrite ring onto her finger.’
- ‘Lasers with wavelengths of 600-1100 nm (such as the ruby, alexandrite, and diode) penetrate deeply and are absorbed by eumelanin in the hair shaft and follicle, which is thought to be the target chromophore.’
- ‘Solid-state lasers such as alexandrite and titanium-doped sapphire are widely tunable between 1.1 and 1.6 m.’
- ‘Randy G. Lander is a Russian descendant and she carries on the medieval Khazars tradition of jewelry trading with an emphasis on alexandrite. She can tell you alexandrite is the rarest gemstone on earth.’
- ‘Before nightfall, the group had seen amethyst, citrine, imperial topaz, aquamarine, tourmaline, and even alexandrite.’
Mid 19th century: from the name of Tsar Alexander II of Russia (see Alexander) + -ite.
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