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What cone-shaped mineral deposit hangs from the roof of a cave?
Stalactites are found hanging from the roof of a cave, as opposed to stalagmites, which grow up from the floor. Remembering the difference is easy - stalactites are "tite" to the ceiling!
Cone shaped deposits that rise from the floor of a cave are called Stalagmites. This is easy to remember as it contains a letter 'G' as does ground. While a Stalactite, which hangs down from a cave...