logo

Video encyclopedia

Dolomite

3:03

Dolemite Funniest Scenes

3:05

Dolemite Is My Name | Official Trailer | Netflix

3:13

Marmolada glacier in Italy collapsed! Marmolada Valanga

1:55

Ice landslide on Mount Marmolada, Italy. Glacier Shard Avalanche

1:30

Identifying Dolomite

Dolomite (also known as dolostone, dolomite rock or dolomitic rock) is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite, CaMg(CO3)2. In old USGS publications, it was referred to as magnesian limestone, a term now reserved for magnesium-deficient dolomites or magnesium-rich limestones. Dolomite has a stoichiometric ratio of nearly equal amounts of magnesium and calcium. Most dolomites formed as a magnesium replacement of limestone or lime mud before lithification. Dolomite is resistant to erosion and can either contain bedded layers or be unbedded. It is less soluble than limestone in weakly acidic groundwater, but it can still develop solution features (karst) over time. Dolomite can act as an oil and natural gas reservoir.
    • Caves in dolomite rock