Investing in Calcium

Calcium is the fifth most abundant element in the Earth's crust, and the most common metal in many animals. It is not found naturally in its elemental state, but occurs as the minerals calcite, dolomite and gypsum.

Rio Tinto - http://www.riotinto.com/

United States Gypsum Corporation (NYSE: USG)

Eagle Materials (NYSE: EXP) - mining of gypsum and manufacture and sale of gypsum wallboard.

Lafarge S.A. (NYSE: LR) - This French construction giant has a major gypsum division.

Kuwait Gypsum Manufacturing & Trading Co (KUW: GYPSUM) - manufacturing and trading of raw gypsum and production of gypsum machinery and equipment.

American Elements - http://www.americanelements.com/ca.html - Calcium metal, calcium hydrade, calcium stabilized zirconia, calcium acetate, calcium bromide, calcium carbonate, calcium chloride, calcium fluoride, calcium nitrate, calcium oxalate, calcium oxide, and calcium sulfate. Also alloys of calcium with magnesium, aluminum and silicon.