Pseudomorph Goethite After Marcasite | Prophecy Stone | 30 gr | Farafra Oasis, Egypt | SO24 Rhodochrosite Its dimensions are 96x50x7mm

Its dimensions are 96x50x7mm

This piece displays extremely well and is a very desirable size showing multiple characteristics of its time spent in space until it came crashing to earth

Weight: 414 Grams / 14

These do not alter the outstanding dispersion

Clarity: Clean to the eye

Pseudomorph Goethite After Marcasite | Prophecy Stone | 30 gr | Farafra Oasis, Egypt | SO24 Rhodochrosite Its dimensions are 96x50x7mmPseudomorphs 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