Pseudomorph Goethite After Marcasite | Prophecy Stone | 38 gr | Farafra Oasis, Egypt Iron It is almost round at

It is almost round at 40x32x29mm in size

Origin: Kipawa Alkaline Complex

Weight: 104 Grams Total Weight / 3

This is an incredible part slice of the Abee meteorite (MB 8) that fell in Alberta

Pseudomorph Goethite After Marcasite | Prophecy Stone | 38 gr | Farafra Oasis, Egypt Iron It is almost round atPseudomorphs 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