Calcium mostly exists as CaCO3 in Earth's crust and mantle (the 2nd region of earth beneath the crust). CaCO3 or Calcium carbonate is the main constituent of limestone and Marble. There are also large amounts of Gypsum CaSO4.
There are no compounds found in calcium. Calcium is an element.
Calcium is found in nature primarily in the form of compounds such as calcium carbonate (in limestone and marble), calcium sulfate (in gypsum), and calcium phosphate (in bones and teeth). It can also be found in various minerals and in seawater.
In the region of 9%
Calcium phosphate and calcium carbonate are found in bones .
Calcium is usually found in compounds rather than as a pure element. Common calcium compounds include calcium carbonate (found in limestone and eggshells) and calcium hydroxide (used in cement and as a food additive).
Calcium and phosphorus are the two major elements found in milk.
Calcium is found in the matrix of bone.
Calcium oxide (CaO) contain calcium and oxygen.
Calcium and carbon are the main elements found in calcium carbide. The chemical formula for calcium carbide is CaC2, indicating one calcium atom and two carbon atoms in each molecule.
The element calcium is found in all four items.
Calcium carbonate is made of the elements calcium, carbon, and oxygen.
Kidney Stones Calcium Oxalate (most common), Calcium Carbonate or Calcium Phosphate