Meaning of purple of Cassius

pur'ple of Cas'sius

Pronunciation: (kash'us, kash'ē-us, kä'sē-us), [key]
  1. 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.