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Named from the Latin word meaning lime, calcium is very common in limestone rocks composed of calcite and dolomite.—David Bressan, Forbes, 31 Dec. 2024 Found in shallow pools of water saturated with the mineral calcite, they are usually detached from the floor, walls or ceiling of the cave, unlike most speleothems.—Gordon G. Chang, Newsweek, 11 Dec. 2024 Longhorn Cavern State Park, Burnet Longhorn Cavern is an ancient underground riverbed, covered in calcite crystals and home to millions of bats.—Brandi D. Addison, Austin American-Statesman, 19 Apr. 2024 Earth’s earliest forms of calcite, for example, developed through the watery alteration of meteorites; microbes then began to build other calcite structures 2.5 billion years ago, whereas snails and clams created new combinations beginning only 100 million years ago.—Paul Voosen, science.org, 1 Nov. 2024 See All Example Sentences for calcite
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