Growing Stalactites

Experiments

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A stalactite is a type of speleothem (secondary mineral) that hangs from the ceiling of limestone caves. Every stalactite begins with a single mineral-laden drop of water. When the drop falls, it leaves behind the thinnest ring of calcite. Each subsequent drop that falls deposits another calcite ring. Eventually, these rings form a narrow, hollow tube commonly known as a stalactite.

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