dreamlike amethyst geode pair with great shape and yellow calcite crystals from Brazil

A pair of amethyst geodes from Brazil with yellow calcite crystals. The two halves reveal the full geode geometry, with embedded yellow calcite points sitting on the purple amethyst faces.

Geode pairs are formed when a geode splits along its central axis. The two halves are presented together, revealing the full cavity geometry.

Yellow calcite crystals, as a secondary mineralization phase, grew on already formed quartz points after the amethyst growth was complete. Iron substitutions in the calcium carbonate lattice create the warm yellow coloration.

Brazilian geodes from Rio Grande do Sul provide this premium quality material. A well-balanced display cabinet dimension with two-phase genesis and premium calcite detail.