A very nice and hollow matching Brazilian agate geode pair! The cavity is larger than most in this particular specimen, although the banding is confined to just the very outside edge. The interior is primarily a clear quartz but it appears a little more grey due to the outside shell color. Some minor iron minerals are present in the cavity. Professionally cut and polished set from Rio Grande do Sul, Brazil that sits on its own optimally with no assistance needed! Price for the matching pair is $60.00 plus shipping.