Limestone

Limestone is a sedimentary rock which is largely composed of mineral calcite (calcium carbonate). Limestone is known to exist in many planets across the galaxy, including Earth and New T'Karath.

On New T'Karath, a group of Vulcan dissidents known as the Sakethans, constructed the walls of their burial mounds with limestone. (TNG novel: Glass Empires: "The Worst of Both Worlds").