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Ships within 48 hours · Estimated delivery Oct 5 - Oct 10
Color: Multicolor
Dimensions: 74x47x26 mm / 2
a little north of Sudbury
The etched design only adds to its allure
but aragonite which forms within caves
Pseudomorph Goethite After Marcasite | Prophecy Stone | 45.2 gr | Farafra Oasis, Egypt Tatahouine Color: MulticolorPseudomorphs 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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