Limestone formation is a geological process that occurs over long periods of time. Oolite, a 6-letter term, is a sedimentary rock composed of concentric layers of calcium carbonate. Stalagmite, a 10-letter term, is a type of limestone formation that rises from the floor of a CAVE due to the dripping of mineralized solutions. Karst, a 5-letter term, is a landscape formed from the dissolution of soluble rocks such as limestone. CAVE, a 4-letter term, is an underground space large enough for a human to enter. Stalagmites, an 11-letter term, are the upward-growing formations that result from the dripping of mineralized solutions. Stalactites, an 11-letter term, are the downward-growing formations that result from the dripping of mineralized solutions.