Deep below Earth's surface, rock and mineral formations lay hidden with a secret brilliance. Under a black light, the ...

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 ...

Discovered in 1878, Luray Caverns has been drawing visitors for over a century—and it's easy to see why. Located just west of ...

while cave popcorn are lumps of calcite that resemble grapes, peas, or (of course) popcorn. In addition, the mineral gypsum ...

The calcites grew underground, fed by the manganese-rich water. Sebree believes that when the rocks shattered since calcite is weaker than the limestone also comprising the cave, the calcite worked to ...

Jewel Cave National Monument (South Dakota) Jewel Cave National Monument in South Dakota is a hidden treasure, renowned for its dazzling calcite crystals and vast underground passages. With over 200 ...

Enter this guide by [Mithuna] from Looking Glass Universe, where she circles back on the concept of measurement basis in quantum mechanics using a rather simple piece of calcite crystal.

Several fluorescence measurements of a zebra calcite in Wind Cave were taken using portable spectrometers. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...