Polished Pilbara Agate PA290 Chrome chalcedony Dimensions at widest points approximately

Dimensions at widest points approximately 110 mm x 105 mm x 30 mm thick

BM309  Brecciated  Mookaite rock

Dimensions at widest points approximately 150 mm x 65 mm x 50 mm thick

Dimensions at widest points approximately 200 mm x 125 mm and 30 mm thick

Dimensions at widest points approximately 150 mm x 100 mm x 30 mm thick

Polished Pilbara Agate PA290 Chrome chalcedony Dimensions at widest points approximatelyPA290 Pilbara Agate , cut and polished on one side with a rough, natural back. Dimensions at widest points are approximately 125 mm x 80 mm x 40 mm. thick. Weighs 823 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.