sedimentary
Dolomite
Dolostone (CaMg(CO3)2)
AI-generated identification · may be incorrectHardness of 3.5 to 4 on the Mohs scale, typically gray, buff, or white, with a vitreous to pearly luster and rhombohedral cleavage.
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Physical properties
Hardness of 3.5 to 4 on the Mohs scale, typically gray, buff, or white, with a vitreous to pearly luster and rhombohedral cleavage.
Formation & geological history
Formed through the magnesium-rich groundwater replacement of limestone in shallow marine environments, primarily during the Paleozoic era.
Uses & applications
Used widely in agriculture to neutralize acidic soils, in the production of magnesium metal, as a construction aggregate, and as an ornamental stone.
Geological facts
Dolomite rock forms the famous Dolomite Mountains in Italy, named after the French mineralogist Déodat Gratet de Dolomieu.
Field identification & locations
Identified by its weaker fizz with cold dilute hydrochloric acid compared to limestone; very common in the Midwestern United States sedimentary basins.
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