I will be listing many new, high grade Russian Amonites and Simbricite cabochons with pyrite druzy in them. These were professionally cut and polished for me by Russian miners/lapidary artists form Ural. You will not find such material here on Etsy or anywhere else, because Ammonite with Simbricite (the orange translucent part) in this quality is very rare. Each stone has a high gloss, a mirror like, polish on top, and a nice polish on the back or is backed up with polished black granite. I will have a huge collection - each fossil is unique and absolutely gorgeous. They are around 80 millions years old - an echo of eternity!
Item info: Pyritized ammonite geode - the back size is also pretty. The piece has a flat back and can be set in bezel or prongs. Origin: Russia Size: 28x28x4-8mm Treatment - none Back - flat, polished.
This material is not as solid as solid ammonite cabochons. Need to be set with gentle pressure.
About the stone: "AMMONITES REPLACED BY PRYITE! FROM THE VOLGA RIVER AREA, SARATOV, RUSSIA. ABOUT 150 MYA, DURING THE JURASSIC PERIOD, THESE AMMONITES DIED IN A SEA THAT CONTAINED A HEAVY CONCENTRATION OF IRON. THIS IRON REACTED WITH SULFUR IN THE WATER AND FORMED THE IRON PRYITE WHICH REPLACED THE AMMONITE CELL BY CELL. THE OUTER SHELL SOMETIMES REMAINED BUT THE CHAMBERS WERE REPLACED WITH PYRITE." (c)