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purple of Cassius

[ kash-uhs, kash-ee-uhs, kah-see-uhs ]
/ ˈkæʃ əs, ˈkæʃ i əs, ˈkɑ si əs /
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noun
a purple pigment precipitated as a sol by the interaction of gold chloride and a solution of stannic acid and stannous chloride: used chiefly in the manufacture of ruby glass, ceramic glazes, and enamels.
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Origin of purple of Cassius

1830–40; named after A. Cassius, 17th-century German physician
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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