Wyoming Fossil Stromatolite Slab - Coffee Pattern worldwide occurrence Our early cutting tests show

Our early cutting tests show that San Carlos Agate takes an excellent polish

it can have marcasite like pattern

This ultra rare piece from the single tree specimen represents museum-quality Washington fossil wood

While these areas are naturally very dark

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Wyoming Fossil Stromatolite Slab - Coffee Pattern worldwide occurrence Our early cutting tests showWyoming Fossil Stromatolite Slab Flowing Coffee Like Pattern Old Stock Green River Formation This stunning slab of old stock Wyoming fossil stromatolite showcases beautiful flowing coffee like pattern from ancient bacterial colonies. This piece is nice and solid and should make exceptional cabochons combining paleontological significance with lapidary quality from the famous Green River Formation. SPECIFICATIONS Material: Natural Wyoming Fossil