New research from the University of Göttingen reveals that amethyst geodes in Uruguay formed at low temperatures from ...

A research team at the University of Göttingen, Germany, reported on its investigation into just exactly how amethyst forms ...

Giant amethyst geodes formed within a steady groundwater flow and at unexpectedly low crystallization temperatures, new study ...

Amethyst is a violet variety of quartz that has been used as a gemstone for many centuries and is a key economic resource in ...

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 remained ...

Because of its wine-like color, early Greek legends associated amethyst with Dionysus, the god of wine and pleasure. The Romans called him Bacchus. Other legends reflected beliefs that amethyst kept ...

A deciduous, clump-forming perennial with ovate green leaves and upright spikes of amethyst-purple flowers which appear from summer through to autumn ...

A deciduous, clump-forming perennial with ovate green leaves and upright spikes of amethyst-purple flowers which appear from summer through to autumn ...