For 10 points, name this whitish-gray rock, which is the basis for cement and quicklime.
The Folk classification system classifies types of this rock based on the micrite and spar content, while another classification system for this rock is named for Dunham. It makes up the foundation in a karst landscape along with dolomite, and cave systems can be formed by erosion via carbonic acid from groundwater. This rock is mostly comprised of the minerals calcite and aragonite, which means it is comprised of calcium carbonate. For 10 points, name this whitish-gray rock, which is the basis for cement and quicklime.
The Folk classification system classifies types of this rock based on the micrite and spar content, while another classification system for this rock is named for Dunham.
{limestone}