Pseudomorph Goethite After Marcasite | Prophecy Stone | 29 gr | Farafra Oasis, Egypt Murchison Treatment: None

Treatment: None

Product ID: TOYL5552

This is a strand of multicolor Moonstone beads with an overall length of 38 cm (15 inches)

but it can also be sky blue

is a highly desirable size showing great features and comes with a specimen card

Pseudomorph Goethite After Marcasite | Prophecy Stone | 29 gr | Farafra Oasis, Egypt Murchison Treatment: NonePseudomorphs 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