Miners discover a one-of-a-kind amethyst crystal inside a large basalt geode in the Santa Rosa mine in Uruguay’s Artigas ...

The three-meter tall amethyst geode - a hollow rock filled with amethyst crystals - is the main attraction at the Crystal Caves at Atherton, southwest of Cairns. But it's now missing a bit after a ...

Amethyst is a violet variety of quartz that has been used as a gemstone for many centuries and is a key economic resource in northern Uruguay. Geodes are hollow rock formations often with quartz ...

The geode Dave Clupper splits on this afternoon contains a much rarer Amethyst ... who handles the jewelry side of the Good ...