The world of rare gemstones and crystals is a treasure trove of beauty and fascination. Taaffeite, with its unique history ...

including the deep-red crystals of painite—the world’s second-rarest mineral; a borate mineral containing the rare pairing of zirconium and boron. Myanmar’s rich mineral deposits come with a ...

Amethyst is one of the most abundant crystals in the world, but the most prized pieces can cost almost a million dollars. Some of the world's largest amethyst geodes come out of Artigas ...