Beautiful dark amethyst geode from Uruguay

A dark Uruguayan amethyst geode of compact display-case classification. Shallow in depth, making it suitable for wall display; the open cavity reveals a dense carpet of deep-violet quartz points.

Its compact three-axis geometry makes it a well-proportioned display-case size. The shallow depth makes the piece suitable for placement near a wall or in a shallow pedestal.

Uruguayan amethyst crystallizes in volcanic geodes of the Arapey Basalt Formation. The deposits in Artigas and Salto have been the globally documented premium provenance for the darkest amethyst colorations for decades.

The polished cut surface shows the typical Uruguayan internal crystallography. Material of this size and coloration is manually selected for higher market classification.

The deep violet color is caused by traces of iron in the quartz lattice, triggered by natural gamma radiation in the surrounding basalt rock.