A new lepidolite deposit in Colorado

A newly discovered pegmatite deposit near Ohio City, Colorado, is chiefly lepidolite, massive topaz, beryl, and albite, with some samarskite and columbitc. Three parallel pegmatite dikes, cach about 11 fect thick and 300 feet long, cut black schist. The minerals arc banded parallel to walls, with the following succession from walls to center; fine‐grained albite and quartz, large plates of lcpidolite with crystals of topaz and beryl, fine‐grained lcpidolitc, and lamellar albite. An estimate of the bulk percentage of the various constituents heads to the belief that at least several thousand tons of each of the commercially vdluahle minerals await mining.