Calcite, which is common in seashells, is a carbonate mineral.
Examples with 50 - 70% carbonate minerals are termed silico-carbonatites.
It is formed by the precipitation of carbonate minerals from water at normal temperatures.
Common carbonate minerals include calcite (found in limestone) and dolomite.
There is an effervescence, after carbonate minerals have been excluded by a test using hydrochloric acid.
It is a rare carbonate mineral and one of only a few strontium minerals.
There are carbonate minerals found on Mars, and dry ice in one of the polar caps.
But during the Cambrian period, some organisms used carbonate minerals for shells, so they had hard parts which could become fossils.
Caliche (the calcium carbonate mineral) is used in construction worldwide.
The city contains hot springs and travertines, terraces of carbonate minerals left by the flowing water.