Throughout the centuries, marcasite’s steely glint has captivated the imaginations of ancient civilizations, such as the Incas and Egyptians, and inspired admiration among the early Romans, who ...

Continuing to chip away at its reputation as a manufacturer of crystal alone, Swarovski Gems, the division of the Austrian firm that sells patented-cut natural gems, held a swanky soiree in Manhattan ...

The United States Geological Survey (USGS) has confirmed through research that some deep-sea metal sulfide ores may ...