Dale Hewin, who owns Hewin’s Minerals in Tucson, Arizona, holds a piece of gem silica Friday at the 66th annual Four Corners Gem & Mineral Show at the La Plata County Fairgrounds. The show, featuring vendors from around the country, will be open from 10 a.m. to 6 p.m. Saturday and 10 a.m. to 5 p.m. Sunday.

Dale Hewin, who owns Hewin’s Minerals in Tucson, Arizona, takes out autunite calcium uranium phosphate from a lead pig Friday at the 66th annual Four Corners Gem & Mineral Show at the La Plata County Fairgrounds. If stored in the protective pig, the uranium is not hazardous beyond a distance of 3 feet. The show, featuring vendors from around the country, will be open from 10 a.m. to 6 p.m. Saturday and 10 a.m. to 5 p.m. Sunday.