A stalactite is a form that can be found on the ceiling of a cave. When a drop of water flows down the stalactite, the water evaporates and leaves a mineral deposit of calcite. This slowly increases the length and thickness of the stalactite.

Thumb
Stalactite that is dripping water

The corresponding formation on the floor underneath a stalactite is known as a stalagmite. Given enough time, these formations can meet. The results are known as columns.

Wikiwand in your browser!

Seamless Wikipedia browsing. On steroids.

Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.

Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.