Is stalagmite and stalactite the same?

Answer 1

Actually they are of the same composition.

Stalactites and stalagmites are deposits in limestone caverns, formed by the evaporation of waters bearing calcium carbonate.

Stalactites grow down from the roofs of caves and tend to be long and thin, with hollow cores. The water moves down the core and precipitates at the bottom, slowly extending the length while keeping the core open for more water to move down.

Stalagmites grow from the floor up and are commonly found beneath stalactites; they are formed from the evaporation of the same drip of water that forms the stalactite. Stalagmites are thicker and shorter than stalactites and have no central hollow core.