Pseudomorph Goethite After Marcasite | Prophecy Stone | 20.8 gr | Farafra Oasis, Egypt Aegirine Weight: 407 Grams / 14

Weight: 407 Grams / 14

This rare specimen would be an amazing addition to any new or existing collection

This was a new meteorite discovery and it only took me 300 hours of searching to find my First One

while also promoting clarity

This mineral was first discovered in the locality of Uva Province in Sri Lanka where the name comes from

Pseudomorph Goethite After Marcasite | Prophecy Stone | 20.8 gr | Farafra Oasis, Egypt Aegirine Weight: 407 Grams / 14Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another. The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed