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

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

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

Researchers have revealed the geological processes behind the formation of amethyst and agate geodes in Northern Uruguay’s ...

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

As well as finding that the amethyst geodes formed at unexpectedly low crystallisation temperatures, the researchers also ...

As well as finding that the amethyst geodes formed at unexpectedly low crystallisation temperatures, the researchers also ...

As well as finding that the amethyst geodes formed at unexpectedly low crystallisation temperatures, the researchers also ...

Amethyst geodes in Uruguay have been found in cooled ... highlighting their scientific and natural value. However, limited knowledge of how these geodes formed has made locating them challenging ...