Dolomite rock is a very common sedimentary rock, especially older carbonate rocks (formed before the Mesozoic) tend to be dolomites whereas younger carbonates are predominantly various limestones Dolomite is usually very similar to limestone and the two are often indistinguishable in the field
In Sedimentary Rocks The Problem of Dolomite L imestone and dolomite are often found together, or closely associated, but their relationships are not always clear
Limestones and dolostones (dolomites) make up the bulk of the nonterrigenous sedimentary rocks Limestones are for the most part primary carbonate rocks They consist of 50 percent or more calcite and aragonite (both CaCO 3)
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight Dolomite is available in black, brown, colourless, green, grey, pink, white colors The streak of a rock is the color of powder produced when it is dragged across an unweathered surface
Sedimentary rock - Sedimentary rock - Limestones and dolomites: Limestones and dolomites are collectively referred to as carbonates because they consist predominantly of the carbonate minerals calcite (CaCO3) and dolomite (CaMg[CO3]2)
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