Great dark amethyst geode with a large calcite flower

A dark Uruguayan amethyst geode with a large calcite bloom. The radially-radiating calcite scalenohedrons stand as a central internal element against the deep violet quartz matrix.

The calcite bloom grew after the completion of the amethyst growth and documents a second, later active solution phase with calcium carbonate saturation. The radiating arrangement follows the internal symmetry of the calcite crystal lattice.

Dark Uruguayan amethysts with pronounced color intensity are the premium classification of the deposit. The combination of premium color and large calcite detail makes the piece a double collector's item.

The compact display case dimension is suitable for classic presentation. The polished exterior highlights the calcite bloom from multiple viewing angles.

A Uruguayan collector's piece with premium color and documented calcite bloom secondary mineralization.