Dark Uruguay amethyst geode, premium quality

A dark, high-quality Uruguayan amethyst geode. Its deep purple color is considered the top of the amethyst scale worldwide, grown in the Arapey Basalt Formation.

Premium-grade dark Uruguayan amethyst owes its color to iron substitutions in the quartz lattice. Deep coloration indicates a high concentration of iron in the original silica-rich solution and a slow crystallization rate.

Deposits in the Uruguayan departments of Artigas and Salto supply this material. Geodes of this color depth and block size are a rare find, appearing in the European collector's market only a few times a year.

A Uruguayan collector's item with full premium color, documented Arapey provenance, and museum-quality display dimensions, suitable for gallery presentation or representative reception areas.