Gold Butte vermiculite deposits, Clark County, Nevada, by F. Beach Leighton, 1967.

The location, history of mining, geology and structure, descriptions of deposits, mineralogy of vermiculite, origin of deposits, and commercial possibilities; references.

A regional overview of geology is in B62.

Report 16, 22 pages, 11x8.5", 1 b/w drawing, 1 b/w photo, 11 tables, 1 plate--1"=400', geology, 11x16", 2 color, $2.00