Glossary of Karst and Cave Terms
1. Limestone or dolomite composed of coral or shell sand or of grains derived from the disintegration and erosion of older limestones. Size of particles ranges from 1/16 to 2 millimeters . 2. A carbonate rock that consists predominantly (>50%) of sandsized calcite (or dolomite) particles. Many of the particles are the angular or degraded fragments of fossil shells .