The seven-level cave system in Bellevue features unique rock formations and an underground river, discovered in 1872 when a ...

Weird Life Found Trapped in Giant Underground Crystals. Floating in pockets of fluid, the microbes are likely new to science and may be up to 50,000 years old, a NASA researcher says.

Explore a lesser-known caver's paradise in this Oklahoma state park where you can see rare, natural gypsum with a guided tour ...

The setting time process of gypsum can be divided into three steps: dissolution of the hemihydrate, nucleation of the gypsum crystals and growth of the CaSO 4.2H 2 O crystals 16. When mixed with water ...

The stunning cave in Naica, Mexico, is home to some of the largest crystals on Earth, but harsh conditions can kill those who stay too long.

In the new study, García-Ruiz also applied detective techniques from his previous analysis of a site with even larger specimens—the Cave of Crystals, which boasts 36-foot-tall gypsum crystals ...

Crystal Cave is located near the Giant Forest area and has been one of the most popular visitor destinations in the park since it opened for public tours in 1940. ADVERTISING Since the announcement ...

Alabaster Caverns State Park near Freedom, Oklahoma houses a geological masterpiece that transforms an ordinary day trip into an extraordinary journey through time and earth. You might think you know ...

Alabaster Caverns State Park near Freedom, Oklahoma offers a subterranean adventure that transforms ordinary Tuesday afternoons into extraordinary explorations of geological marvels.

After a four-year closure due to natural disasters, Crystal Cave in Sequoia National Park reopened to the public in time for Memorial Day, the unofficial start of the summer.