Found all over the world, calcite is the most stable form of calcium carbonate and is the main mineral found in limestone. We ...

All that glitters ... might be rock. Collector Marc Weill (center), with adviser Dennis Tanjeloff (left) and partner Daniel Trinchillo, the "Indiana Jones" of the operation. Together, they've amassed ...

NEW YORK, NY - JULY 4: Fireworks are launched from the Brooklyn Bridge during Macy's Independence Day fireworks show on July 4, 2019 in New York City. (Photo by Gary Hershorn/Getty Images) There would ...

Stefan Nicolescu, collections manager at the Yale Peabody Museum of Natural History looks at Gail and Jim Spann’s collection of gemstones in Rockwall. Photo by ALLISON SLOMOWITZ - special contributor ...