Speleothems - Gypsum Features
Gypsum crystals are common in some of the dryer parts of the cave. Gypsum, a mineral containing both calcium and sulfur, sometimes takes the form of needle-like crystals that radiate from clusters on the floor of the cave; in other cases, gypsum resembles puffs of cotton, or forms clusters of curved or coiled crystals called gypsum flowers.
Did You Know?
Wind Cave is one of the longest caves in the world and has an amazing amount of a rare cave formation called boxwork. More...