Polished Pilbara Agate PA280 black jasper Dimensions at widest points approximately

Dimensions at widest points approximately 370 mm x 110  mm with slightly tapering thickness of 11 - 14 mm

Highly visible annular rings

Dimensions at widest points approximately 180 mm x 70 mm x 7 mm  thick

Weighs 418 grams

RH227  A slab

Polished Pilbara Agate PA280 black jasper Dimensions at widest points approximatelyPA280 A matching pair of polished Pilbara Agate halves with natural rough backs. (A single agate cut in half). Dimensions at widest points of each half approx. 60 65 mm x 30 mm x 25 30 mm thick. Weight of both is 150 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