The rock formations in caves are chemistry fossils — that glow. These rocks are made of calcite, a form of calcium carbonate. Impurities trapped in calcite cause the mineral to fluoresce different ...

CORVALLIS, Ore. – Climate history recorded in a calcite deposit in a southern Nevada cave indicates that the hot, arid southwestern United States experienced significant shifts in temperature and ...

ALBUQUERQUE, N.M. -- A calcite formation named Snowy River could prove a gold mine for scientists. Snowy River, believed to be the largest continuous calcite formation in the world, was discovered in ...

A routine adventure turned into a jaw-dropping discovery. Watch as a massive calcite crystal cluster emerges from bizarre cave formations that look almost extraterrestrial. Gunmen wreak chaos in ...

An ancient hand stencil, at least 67,800 years old, was discovered in an Indonesian cave, making it one of the earliest known examples of human cave art. This significant find, dated using ...