Occurrence Calcium carbonate

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1 occurrence

1.1 geological sources
1.2 biological sources
1.3 extraterrestrial





occurrence

calcium carbonate chunks clamshell


geological sources

calcite, aragonite , vaterite pure calcium carbonate minerals. industrially important source rocks predominantly calcium carbonate include limestone, chalk, marble , travertine.


biological sources

eggshells, snail shells , seashells predominantly calcium carbonate , can used industrial sources of chemical. oyster shells have enjoyed recent recognition source of dietary calcium, practical industrial source. dark green vegetables such broccoli , kale contain dietarily significant amounts of calcium carbonate, however, not practical industrial source.


extraterrestrial

beyond earth, strong evidence suggests presence of calcium carbonate on mars. signs of calcium carbonate have been detected @ more 1 location (notably @ gusev , huygens craters). provides evidence past presence of liquid water.








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