☞ Turquoise is susceptible of a high polish, and when of a bright blue color is much esteemed as a gem. The finest specimens come from Persia. It is also found in New Mexico and Arizona, and is regarded as identical with the chalchihuitl of the Mexicans. [ 1913 Webster ]
a. Having a fine light blue color, like that of choice mineral turquoise. [ 1913 Webster ]