Large Grape Agate Specimen DE795 tower with evidence of its utilization

with evidence of its utilization dating back to ancient civilizations

The formation of dendritic opal involves the infiltration of mineral-rich water into rock cavities

that infiltrate the silica-rich solutions during its formation

and emotional healing

and some parts of Africa

Large Grape Agate Specimen DE795 tower with evidence of its utilizationIndonesian Grape Agate (Botryoidal Chalcedony) Approx. Dimensions: 6 x 8 x 3. 5" Approx. Weight: 1700 grams Includes acrylic stand as shown in photo. Grape agate is a purple form of botryoidal chalcedony found in Indonesia. It forms in globular clusters that resembles a bunch of grapes. It gets its name from the ancient Greek term Botrys, which means "bunch of grapes". Grape agate can also exhibit green to green blue colors.