Nevada’s desert landscape is chock full of natural gemstone and minerals awaiting discovery, but when it comes to chalcedony, Gemfield is the cream of the crop. Located in western central Nevada, this public dig site is believed to hold the United States’ largest deposit of gemstone-quality chalcedony. This smooth, quartz stone—whose varieties include agate, jasper, and opalite—is prized for its hardness and luster and is ideal for polishing and for creating jewelry. Gemfield’s chalcedony appears in many shapes, patterns, and hues ranging from green to black and pale blue to…
