Min. [f. L. viola VIOLA1; named by A. Breithaupt, 1838.] (See quots.)
1850. Ansted, Elem. Geol., Min., etc., § 407. Pistacite,… Violane, Withamite, are either synonyms or varieties of Epidote.
1857. Dana, Min. (1862), 182. Violan is a dark violet-blue mineral, resembling glaucophane.
1868. Watts, Dict. Chem., V. 1000. Violan, a silicate of aluminium, calcium, magnesium, and sodium…. It occurs massive, and in indistinct, elongated, granular concretions.
