Stephen M. Voynick has worked as an advertising, industrial, and technical photographer; a marine salvage diver in the Caribbean and South America; and a hardrock miner in Colorado, Wyoming, and Arizona. Since 1982 he has worked as a full-time freelance writer. Voynick has written more than five hundred articles, many on topics of mining, mining history, western lore, resource development, and applied science. He is currently a staff writer with Persimmon Hill, the magazine of the National Cowboy & Western Heritage Museum. With a lifelong interest in minerals, gemstones, and fossils, he is also a contributing editor and science columnist for Rock & Gem magazine. Voynick lives in Twin Lakes, Colorado.