Emily Dickinson Lexicon

ZOIS'ITE, n. [from Van Zois, its discoverer.]

A mineral regarded as a variety of epidote. It occurs in deeply striated rhomboidal prisms, much compressed and rounded; its colors gray, yellowish or bluish gray, brown, grayish yellow, or reddish white. – Cleaveland. This is called also a subspecies of prismatoidal augite. – Cyc. Thomson.