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Feature

Used medicinally as an inexpensive dietary calcium supplement or gastric antacid
Used in the costruction industry
Widely used mineral in paper, plastics, paints and coatings industries both as a filler

Description

It is formed by three main elements: carbon, oxygen and calcium. It is a common substance found in rocks in all parts of the world, and is the main component of shells of marine organisms, snails, coal balls, pearls, and eggshells. Calcium carbonate is the active ingredient in agricultural lime, and is created when calcium ions in hard water react with carbonate ions creating limescale. It is commonly used medicinally as a calciumsupplement or as an antacid, but excessive consumption can be hazardous.