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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
Dimensions: 114x93x60 mm / 4
Dimensions: 39x27x24 mm / 1
This mineral was first discovered in the locality of Uva Province in Sri Lanka where the name comes from
This rare specimen would be an amazing addition to any new or existing collection
Pseudomorph Goethite After Marcasite | Prophecy Stone | 20.8 gr | Farafra Oasis, Egypt Aegirine Dimensions: 114x93x60 mm / 4Pseudomorphs 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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