Bulletin 4 — Fluorspar in New Mexico

By William D. Johnston, Jr., 1928, 128 pages

Since 1909 New Mexico has annually produced a small quantity of fluorspar, and in past years it has challenged Colorado's position as the principal producing state of the west.

In 1911 Darton and Burchard published a description of the Sadler property near Deming. Ladoo, in 1922, visited a number of New Mexico properties which he described in a recent bulletin3 of the Bureau of Mines.

In the summer of 1927 the writer undertook the field examination of all reported fluorspar deposits in the state. As the investigation progressed other occurrences were brought to his attention and by the spring of 1928 some 40 deposits had been visited. These deposits are described in Part II of this bulletin.