Wyoming Fossil Stromatolite Slab - Eerie Ghastly Pattern - Green River Formation stabilized cabochon material causing the photos to look

causing the photos to look dimmer than they do in person

geometric structure

Weight: Approx 4 lbs 11 oz

though with them being found in a small fossil bearing formation

but some types that are heavier with irons may need to be treated to polish due to pits

Wyoming Fossil Stromatolite Slab - Eerie Ghastly Pattern - Green River Formation stabilized cabochon material causing the photos to lookHere's a stunning slab of high grade Wyoming Fossil Stromatolite showing some very eerie almost ghastly pattern and colors. This ancient stone preserves colonizing bacteria from the Eocene Epoch, creating patterns unlike any other fossil. This one would make some nice spooky cabochons and could be a neat addition to your lapidary collection. SPECIFICATIONS Material: Natural Wyoming Fossil Stromatolite Dimensions: 92mm x 81mm x 5mm (Inches 3. 6" x 3.