Pseudomorph Goethite After Marcasite | Prophecy Stone | 37.6 gr | Farafra Oasis, Egypt Elpidite This amazing specimen displays sharp

This amazing specimen displays sharp edged rock fragments imbedded in a matrix of pulverized rocks

There is one large white scapolite crystal on the back wall which is 2" long

Origin: Russia

Stilbite is recognized as a highly creative stone that enhances intuition

Pseudomorph Goethite After Marcasite | Prophecy Stone | 37.6 gr | Farafra Oasis, Egypt Elpidite This amazing specimen displays sharpPseudomorphs 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