What caves are stalactites and stalagmites formed?

Answer:
Caves that have cacium carbonate in their geology. The calcium carbonate dissolve in water, but as that water evaporates the calcium carbonate is left behind. It gradually forms a spike from the ceiling or the floor as the drips evaporate leaving behind their solutes.
First answer by Teech. Last edit by Teech. Contributor trust: 28 [recommend contributor recommended]. Question popularity: 3 [recommend question].