Geochemistry: Simple Conditions Of Calcite Precipitation
Imagine a bowl of water. Add some naturally occurring, weak, carbonic acid (H2CO3) to the water. Then place a piece calcite (CaCO3) in the water. The carbonic acid reacts with, and dissolves, the calcite to create two products: calcium ions (Ca+2 ) and bicarbonate ions (HCO3), both of which remain dissolved in the water.
