Dimensions: 120

43 grams NWA (Northwest Africa) 869 L3-6 classified meteorite Individual found by Nomads in the Sahara Desert

Navi Mumbai

Name: Quartz Galena Crystal Cluster

Dimensions: 49x51x58 mm / 1

Pseudomorph Goethite After Marcasite | Prophecy Stone | 30.2 gr | Farafra Oasis, Egypt | SO24 Pseudomorph Dimensions: 120Pseudomorphs 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