Goethite (ps after Marcasite/Pyrite)

White Desert, North of Farafra Oasis
Size: 2.0x1.2x1.4 cm


Here's remarkable pseudomorph of goethite after marcasite/pyrite. This specimen features a stacking of two pyrite octahedron crystal forms, a distinctive specimen not often seen in the pseudomorphs from the Cretaceous Khoman Chalk of Egypt's White Desert. Originally mined by French dealer Alain Carion and his son in the remote western desert of southwest Egypt, these pseudomorphs underwent a fascinating transformation from marcasite/pyrite to iron hydroxides, primarily goethite, resulting in captivating formations.

These goethite pseudomorphs stand out for their aesthetic appeal and offer a glimpse into the dynamic world of crystallography, making them a welcome addition to any mineral collection.

Note: All prices are in Canadian dollars (CAD). International customers are charged in CAD, exchange rate is calculated automatically by your bank/paypal upon checkout.

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