Polished Pilbara Agate PA280 black jasper Dimensions at widest points approximately

Dimensions at widest points approximately 145 mm x 80 mm and 9 mm thick

Dimensions at widest points approximately 200 mm x 50 mm x 10 mm thick

95 mm x 70 mm x 35 mm thick

PU156  Purple Chalcedony slab

Highly visible annular rings

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