Polished Aragonite slab AR105 Kumarina These are the oldest known

These are the oldest known fossils on Earth

Dimensions at widest points approximately 90 mm x 50 mm x 8 mm thick

It weighs 203 grams

Dimensions at widest points approximately 195 mm x 90 mm x 9

Polished Aragonite slab AR105 Kumarina These are the oldest knownAR105 Aragonite slab, polished on one side. Dimensions at widest points approximately 140 mm x 90 mm x 6 7 mm thick.(slightly tapering) Weighs: 160 grams Aragonite is a calcium carbonate mineral. These specimens come from a salt lake in the Murchison region of Western Australia not far from the town of Mount Magnet. It is believed that calcium carbonate rich water that has drained from surrounding hills into the highly saline water occurring in the