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Marble was, at one point, alive: The metamorphic rock is forged from the calcite shells of innumerable sea creatures.—Meara Sharma, The Dial, 22 July 2025 The desert sand at the test site is composed mostly of grains of quartz and feldspar, with small crystals of calcite, hornblende, and augite mixed in.—David Bressan, Forbes.com, 16 July 2025 Carbonates, which include calcite, dolomite, aragonite, magnesite, and siderite, are formed by ions of carbon and oxygen dissolved in water that react with metal ions.—New Atlas, 12 July 2025 Highlights of the five-night trip include seeing the cave’s own rainforest and a calcite wall called the Great Wall of Vietnam.—Rachel Chang, Travel + Leisure, 7 July 2025 See All Example Sentences for calcite
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