Jurassic Pyritized Ammonite - Pleuroceras ec824443c95d0e87cc3e574f9cdc918c and iron plus vanadium results

and iron plus vanadium results in orange stones

as it will cause it to deteriorate

Petrified Wood is an unique form of fossilization

This necklace is made using 8mm round dumortierite beads

Topaz comes in many different hues

Jurassic Pyritized Ammonite - Pleuroceras ec824443c95d0e87cc3e574f9cdc918c and iron plus vanadium resultsPyritized Ammonites are considered some of the most collectable type of Ammonite fossil specimens. Iron Pyrite, also known as "Fool's Gold" enters the Ammonites chambers, replacing the animal's structure cell by cell. When the cellular replacement process goes just right, a magnificent fossil specimen such as the one pictured is created. The name Pyrite is derived from the Greek (purits), "of fire" or "in fire," from (pur), "fire. Ammonites are an