Beryllium is a naturally occurring metal which is found in beryl and bertrandite rock. It is extremely lightweight and hard, is a good electrical and thermal conductor and is non-magnetic. Beryllium, whose atomic number 4, is a brittle, steel-gray metal found as a component of coal, oil, certain rock minerals, volcanic dust, and soil. Elemental beryllium is the second lightest of all metals and is used in a wide variety of applications. In its elemental form beryllium exhibits the unique properties of being light weight and extremely stiff, giving the metal several applications in the aerospace, nuclear, and manufacturing industries. In addition, beryllium is amazingly versatile as a metal alloy where it is used in dental appliances, golf clubs, non-sparking tools, wheel chairs, and electronic gadgets. Unfortunately, beryllium also causes lung and skin disease in 2% to 10% of exposed workers. Occupational exposure most often occurs in mining, extraction, and in the processing of alloy metals containing beryllium. The adverse health effects of beryllium exposure are caused by the body's immu
Laboratory work (research and development, metallurgy, chemistry)
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