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Ships within 48 hours · Estimated delivery Oct 2 - Oct 7
Dimensions: 127x127x101 mm / 5x5x4 inches
Shape: Geometrically Carved Round Cabochon
The shape is an extraordinary example of tetragonal crystal form
Approx Weight (per Strand): 154ct
Pseudomorph Goethite After Marcasite | Prophecy Stone | 30.3 gr | Farafra Oasis, Egypt | SO24 Rizalite Dimensions: 127x127x101 mm / 5x5x4Pseudomorphs 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
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