Polished Pilbara Agate PA285 cla DO213 Dendritic Opal rough rock

DO213  Dendritic Opal rough rock

Approximate weight of each piece is between 139 and 229 grams

GRN81  Green Opal & Magnesite rough rock

rough rock cut and polished on one side with a rough

Polished Pilbara Agate PA285 cla DO213 Dendritic Opal rough rockPA285 Pilbara Agate , cut and polished on one side with a rough, natural back. Dimensions at widest points are approximately 130 mm x 100 mm x 70 mm. thick. Weighs 1,241 grams. Studies have shown that these are probably the oldest agates in the world with an age in excess of 2 billion years. They occur in the Maddina Formation in the Pilbara region of Western Australia. From near Nullagine, Pilbara region, Western Australia.