Polished fossil stromatolite slab from Bolivia. BST108 polished rock Dimensions at widest points approximately

Dimensions at widest points approximately 50 mm x 40 mm x 25 mm thick

105 mm x 85 mm x 9

210 mm x 125 mm  x 17 mm

Dimensions at widest points approximately 175 mm x 75 mm x 9 mm thick

TIR172 Tiger Iron rough rock

Polished fossil stromatolite slab from Bolivia. BST108 polished rock Dimensions at widest points approximatelyBST108 Fossil stromatolite slab, polished on one side. This museum quality specimen has been cut at right angles to the bedding and displays the columnar structure beautifully ! From the Miraflores Formation, El Molino, Potos, Bolivia, South America. Age approx. 70 million years (Cretaceous) Dimensions at widest points approximately 290 mm x 270 mm x 10 mm Weighs 1,283 grams