Polished fossil Oncolite slab. ONC116 fossil stromatolite It weighs 105 grams

It weighs 105 grams

Weighs 510 grams

20 large tumble polished Mookaite palm stones

145 mm x 105 mm x 8 mm thick

135 mm x 75 mm x 9 mm

Polished fossil Oncolite slab. ONC116 fossil stromatolite It weighs 105 gramsONC116. Fossil Oncolite polished slab. From the Miocene "Trealla Limestone" north of Carnarvon, Western Australia . Age is approx. 15 million years. Dimensions at widest points approx. 105 mm x 85 mm x 7 mm thick. Weighs 134 grams. Oncolite is a limestone composed largely of oncoidsrounded, coated grains that grow as thin layers of lime mud accumulate around a tiny nucleus (such as a sand grain or shell fragment) under microbial influence. Formed in