Dark Amethyst Geode with Large Crystals

A dark Uruguayan amethyst geode with large crystals, in deep three-axis geometry. Inside are strong violet points, each crystal individually legible and visible in its growth form.

The balanced three-axis geometry makes the geode equally legible from multiple viewing directions. The large inner crystals document long growth phases with calm solution flow.

Uruguayan amethyst crystallizes in volcanic geodes of the Arapey Basalt Formation. The deposits in Artigas and Salto have been the 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 the higher market classification.

A Uruguayan amethyst geode with large crystals, dark premium color, and balanced three-axis geometry.