valentinite

[ val-uhn-ti-nahyt, -tee-nahyt ]

noun

a mineral, antimony trioxide, Sb2O3, formed by the oxidation of various minerals containing antimony and occurring in the form of white orthorhombic crystals.

Origin of valentinite

1855–60; <German Valentinit, named after Basil Valentine, 15th-century German alchemist; see -ite¹

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