noun🔗ShareCalcitA very widely distributed crystalline form of calcium carbonate, CaCO3, found as limestone, chalk and marble"Many caves are formed from limestone, which is mostly made of the mineral calcite. "Viele Höhlen entstehen aus Kalkstein, der hauptsächlich aus dem Mineral Calcit besteht.geologymineralsubstancechemistrymaterialChat with AIVocabulary GamePractice Reading