Abstract :
Mica, which heads the list of critical raw materials, is needed so urgently that quantities are being flown to the United States from India. Action is being taken now toward developing domestic mica resources, chiefly in North Carolina, Georgia, New Hampshire, Connecticut, and South Dakota. In this article mica sources, especially those in the Western Hemisphere, are surveyed and the production problem is found to be based on the dearth of skilled, low-cost labor.
