The alkaline earth metals are part of Group 2 on the Periodic Table of Elements, consisting of beryllium, magnesium, calcium, strontium, barium and radium.
Beryllium is used in the manufacture of metal alloys adding strength, durability and temperature stability. In industries where flammable solvents are used, copper-beryllium tools prevent sparks.
Magnesium is a strong and light metal and often mixed with aluminum and zinc to manufacture airplane parts. When mixed with rare earth minerals, the metal becomes temperature resistant to build car engines.
Calcium has numerous industrial uses, including making quick and slaked lime for the glass and paper industries. The food, pharmaceutical and cosmetic industries uses calcium in toothpaste, vitamins and antacids.
Strontium produces a brilliant red color when burned, which makes it ideal to mix into fireworks and flares. It is also used as a glass additive.
Barium is combined with sulfur to make barium sulfate, used as a lubricating mud in drilling operations and taken as a chalky liquid to silence stomach aches and intestinal problems.