Large Grape Agate Specimen DE795 tower The formation of dendritic opal

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

with evidence of its utilization dating back to ancient civilizations

Picture Jasper Ganesha Carving

that infiltrate the silica-rich solutions during its formation

Dimensions: 4

Large Grape Agate Specimen DE795 tower The formation of dendritic opalIndonesian 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.