Magnesium
Yes, both calcite and dolomite are carbonates.
Calcite and aragonite.
Calcite belongs to the carbonates.
marble
Dolomite is a mixture of calcium and magnesium carbonates. The ratio of Ca:Mg can vary. If the Ca percentage is very high (above 90%), it is generally considered as calcite and if Mg is very high, it is considered as magnesite (not magnetite). Theoretically, dolomite should have 50:50 Ca:Mg ratio. Usually, dolomite is slightly resistive against weathering and diluted acids compared to calcite.
Magnesium
Yes, both calcite and dolomite are carbonates.
Calcite, dolomite and rhodochrosite are polymorphs of each other. Meaning a calcite can become a dolomite and so on. They are all also examples of calcium bearing minerals.
calcite and dolomite.
Calcite will react vigorously when placed in dilute HCL. Dolomite will not.
Calcite and aragonite.
Calcite belongs to the carbonates.
An easy test is to try to dissolve it with hydrochloric acid. Dolomite shows a much weaker reaction with acids than calcite. If this test is not conclusive one can add quinalizarin to the acid. In the case of dolomite the solution will then become blue because of a complex forming with the magnesium from the dolomite. In the case of calcite this blue colour should be either absent or very weak because calcite commonly contains only little magnesium.
Phosphorus is extracted from Apatites (a class of tri-calcium Phosphate Mineral).Calcium is found in Dolomite, Calcite and Gypsum
marble
Yes. Dolomite is calcium magnesium carbonate.
Dolomite is a mixture of calcium and magnesium carbonates. The ratio of Ca:Mg can vary. If the Ca percentage is very high (above 90%), it is generally considered as calcite and if Mg is very high, it is considered as magnesite (not magnetite). Theoretically, dolomite should have 50:50 Ca:Mg ratio. Usually, dolomite is slightly resistive against weathering and diluted acids compared to calcite.