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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28
a little north of Sudbury
The etched design only adds to its allure
Its dimensions are 130x83x57 mm
Approx Weight (per piece): 8
Pseudomorph Goethite After Marcasite | Prophecy Stone | 45.2 gr | Farafra Oasis, Egypt Tatahouine a little north of SudburyPseudomorphs 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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