[2] Caymanite occurs as a fine grained or vug filling variety of the mineral dolomite CaMg(CO3)2.

The first phase of caymanite formation occurred after deposition, lithification, and karst process of the Oligocene Cayman Member.

The second phase of caymanite formation occurred after joints had developed in the Middle Miocene Pedro Castle Member.

Caymanite deposition predated dolomitization, a process where limestone is altered from contact with magnesium-rich water.

Then the magnesium carbonate replaces the calcite naturally in the rock without complete destruction of the original sedimentary fabrics or structures.