PLEUROCERAS SPINATUM PYRITE AMMONITES FROM GERMANY! THESE WHOLE AMMONITES ARE NATURALLY CAST IN PYRITE AND ARE FROM BUTTENHEIM, GERMANY, NEAR NUREMBERG. PREPARATION INCLUDES REMOVING THE WHITE COATING ON THE AMMONITE AND THEN BUFFING IT TO REVEIL THE PYRITE. BRILLIANT PYRITE COLOR ON BOTH THE AMMONITE AND THE CAST IN THE MATRIX. THESE ARE FROM THE JURASSIC PERIOD AND THE LOWER LIAS EPOCH-- ABOUT 200-150 MYA. BEAUTIFUL ADDITION FOR YOUR COLLECTION. NOW, NATURAL & NOT PREPARED PLEUROCERAS AMMONITES FROM THE SAME LOCATION. SQUARE SIZE CUBE IS 1 1/4 INCHES.
DACTYLIOCERAS COMMUNE PYRITE AMMONITES FROM HOLZMADEN, GERMANY. THESE ARAGONITE SHELLED AMMONITES ARE PYRITE REPLACEMENTS IN OIL SHALE FROM A WORLD FAMOUS SITE. JURASIC PERIOD ABOUT 180 MYA WHEN EUROPE WAS COVERED BY THE JURA OCEAN. THESE SHALE DISPLAYS ARE A NICE SIZE FOR DESKS, BOOKCASES, OR WALL HANGINGS.