very large impressive amethyst geode pair

A very large amethyst geode pair from Brazil. 200 cm high per half, a museum-quality collector's dimension with a full inner wall on both sides.

Amethyst forms in volcanic geodes of the Serra-Geral Basalt Formation. Brazilian material from Rio Grande do Sul offers a wide color spectrum, from light lavender to deep violet. Geode pairs of this size are classified as premium architectural pieces in the collector's trade.

Extracting geode pairs 200 cm high is a masterful mining achievement. Geodes of this size typically break uncontrollably; splitting them precisely into two usable halves is rarely successful.

Both halves show the mirror-image growth geometry of the original cavity's inner wall. Arranging them as a mirrored pair illustrates the original geode's symmetry.

An architectural collector's piece of museum quality.