Polished fossil stromatolite slab from Bolivia. BST107 #brecciated pink opal Approximate dimensions at widest points

Approximate dimensions at widest points 200 mm  x 90 mm  x 60 mm thick

Dimensions at widest points approximately 170 mm  x 110 mm  x 35 mm thick

Dimensions at widest points approximately 85 mm x 80 mm x 35 mm thick

CH423  Chrysoprase  slab polished  on one side

An Australian Wyloo Amethyst crystal

Polished fossil stromatolite slab from Bolivia. BST107 #brecciated pink opal Approximate dimensions at widest pointsBST107 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 345 mm x 180 mm x 10 mm Weighs 1,323 grams