Stalactites hang from the ceiling of a cave while stalagmites grow from the cave floor. Stalactites are produced by precipitation of minerals from water dripping through the cave ceiling. A Stalagmites is an upward mound of mineral deposits that have precipitated from water dripping onto the floor of a cave.
Stalactites and stalagmites are both mineral deposits that are commonly found in the caves. The stalactites are formed when the minerals fall down from the roof of the caves and are sharp, pointed downward. On the other hand, the stalagmites are formed from the subsequent deposition of the minerals on the floor that falls from the roof.
These are both formed simultaneously from the dropping of water containing calcium carbonates and carbon dioxide.
Sometimes, the stalactites and stalagmites are joined in certain places, and then they are called columns.