The shells of marine organisms contain calcium carbonate CaCO3, largely in a crystalline form known as calcite. There is

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The Shells Of Marine Organisms Contain Calcium Carbonate Caco3 Largely In A Crystalline Form Known As Calcite There Is 1 (52.65 KiB) Viewed 15 times

The shells of marine organisms contain calcium carbonate CaCO3, largely in a crystalline form known as calcite. There is a second crystalline form of calcium carbonate known as aragonite. Physical and thermodynamic properties of calcite and aragonite are given below. (J/K*mol) Calcite 81.88 Aragonite 81.25 AH₁ (kJ/mol) density (g/mL) -1206.87 2.710 -1207.04 2.93 AGf (kJ/mol) -1128.79 -1127.71 S°(J/K*mol) 92.88 88.70 CP