- Harry Potter: "I never know. What's the difference between a stalagmite and a stalactite?"
- Rubeus Hagrid: "Stalagmite's got an 'm' in it. An' don' ask me questions just now, I think I'm gonna be sick."
- — Exchange between Harry Potter and Rubeus Hagrid while riding a Mine Cart to Vault 687.[src]
A stalagmite is a rocky formation that can be found on the floor of a cave. It rises from the floor of a limestone cave when mineralised solutions drip from the ceiling and deposits of calcium carbonate form columns on the ground. The corresponding formation on the ceiling of a cave is known as a stalactite.
There were huge stalagmites and stalactites by an underground lake in the Gringotts Wizarding Bank vault area.
Appearances
- Harry Potter and the Philosopher's Stone (First appearance)
- Harry Potter and the Philosopher's Stone (film)
- Harry Potter and the Philosopher's Stone (video game)
- Harry Potter and the Chamber of Secrets (video game)
- Harry Potter and the Deathly Hallows
- Harry Potter and the Deathly Hallows: Part 1 (video game)
- Harry Potter and the Deathly Hallows: Part 2
- Harry Potter and the Deathly Hallows: Part 2 (video game)