Geodes and jewellery Some of the world’s most stunning geodes are amethysts. If you collect crystals, you might want to add an amethyst geode in your collection for its sheer beauty.

Amethyst is a violet variety of quartz which 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 a violet variety of quartz which 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 geodes in Uruguay have been found in cooled lava flows, which date from the original breakup of the supercontinent Gondwana around 134 million years ago. However, their formation has ...

Amsterdam-based NL Architects is envisioning a chain of striking hotel towers with a design based on the ‘positive powers’ of amethyst, a variety of quartz used in jewellery.

He originally wanted a 5.5m tall smoky quartz geode but his 28-year-old daughter Manya talked him into buying a 5.5m amethyst geode, big enough to sit inside. “Manya, who I call my ‘Crystal ...