Feeling indecisive? Amethyst is where it's at. It's also useful for easing tension headaches and banishing insomnia. Primary chakra: Heart It's not hard to guess what rose quartz is used for. Its ...

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 ...

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, Uruguay.