Stalactite
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A stalactite is a mineral formation that hangs from the ceiling of caves, hot springs, or man-made structures such as bridges and mines. Any material that is soluble and that can be deposited as a col
Image showing the six most common speleothems with labels. Enlarge to view labels.
Pillars in the Caves of Nerja, Spain
Shark tooth stalactites
Ice stalactites on the gutter of a house
Speleothem
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A speleothem is a geological formation made by mineral deposits that accumulate over time in natural caves. They can take a variety of forms, depending on their depositional history and environment. C
Stalactite
…may be composed of lava, minerals, mud, peat, pitch, sand, sinter, and amberat (crystallized urine of pack rats). A stalactite is not necessarily a speleothem, though speleothems are the most common form of stalactite because of the abundance of limestone caves. The corresponding formation on the floor of the…
Rimstone with odd color, in Bristol Caverns, TN
Scallops in Mammoth Cave
Various formations in the Hall of the Mountain Kings, Ogof Craig a Ffynnon, South Wales, Great Britain