Agate, Oco Tumbled Stones

Oco geodes are traditionally found in the Tres Pinheiros region of Brazil. Known for a hollow core that's filled with miniature crystal structures — these tumbled stones contain Oco Geodes that are completely filled with quarts and feature brilliant banding and swirls that make them truly unique.

These are also some of the largest tumbled stones in our inventory — often measuring out as closer to mini palm stones than traditional tumbles. Each stone is a tumbled specimen of one-half of a cut geode.

All tumbled stones are priced and sold individually, unless otherwise noted.

Due to the unique qualities in each stone, sizes can vary from 0.75 inches to 1.75 inches per stone.