NASA’s Perseverance rover found large crystals of quartz with a high purity on Mars, which probably had to have formed in the ...

All kinds of hidden gems at the Aiken-Augusta Gem & Mineral Show, so do you know your state gem or your birthstone? Seeing is ...

Pink ChalcedonyA pink chalcedony shows off its beauty. Chalcedonies include many types of cryptocrystalline quartz gems and feature a number of different colors. Geologists can tell a chalcedony ...

Pennsylvania may not be the first place that comes to mind when thinking of gemstone mining, but the Keystone State has a surprising diversity of beautiful natural gemstones that can be found across ...