North Bend

Characterized by its yellow to greenish-yellow color

It is amazingly light considering its 17

Each rough Emerald stone is beautiful and unique

Pseudomorph Goethite After Marcasite | Prophecy Stone | 17.9 gr | Farafra Oasis, Egypt | SO24 Spinel North BendPseudomorphs 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