Pseudomorph Goethite After Marcasite | Prophecy Stone | 17 gr | Farafra Oasis, Egypt Sodalite Product ID: TONB3217

Product ID: TONB3217

Its dimensions are 99x63x7 mm

Dimensions:  105x52x38 mm / 4

Scepter quartzes are crystals in which a second-generation crystal tip grew on top of another quartz crystal

Here we have for you a nice looking individual fragment of a Sahara Desert NWA unclassified meteorite weighing 212 grams

Pseudomorph Goethite After Marcasite | Prophecy Stone | 17 gr | Farafra Oasis, Egypt Sodalite Product ID: TONB3217Pseudomorphs 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