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Carbonatite Igneous Rock
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Carbonatite Igneous Rock. Light gray to yellow igneous rock. Carbonatite can form as either an intrusive or extrusive rock. Major minerals include calcite and dolomite. Carbonatite has a fine to medium-grained texture. Each rock sample is approximately 1-2 inches in length and width. An information card with details on the rocks formation, mineral content, characteristics and uses is included.