Used in the nuclear industry and to make light, very strong alloys used in the aircraft industry. Beryllium salts are used in fluorescent lamps, in X-ray tubes, and as a deoxidizer in bronze metallurgy. Beryl is the gemstones emerald and aquamarine. It is used in computers, telecommunication products, aerospace and defense applications, appliances, and automotive and consumer electronics. Also used in medical equipment. The U.S. was 10 percent import reliant in 2012.