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05513 - Well Preserved Pyritized 1.34 Inch Goniatite Devonian Cephalopod Miscellaneous echinoderms Gold and arsenic occur as

USD30.50 USD65.50
SKU 80936438280
4.2

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Description

Gold and arsenic occur as a coupled substitution in the pyrite structure

Sister taxa: Cimolichthys

Mass (g): 2553 kg

Ragaini 1994 and Sepkoski 2002

05513 - Well Preserved Pyritized 1.34 Inch Goniatite Devonian Cephalopod Miscellaneous echinoderms Gold and arsenic occur asUnidentified species. His suture lines are wonderfully well detailed. It is naturally pyritized. It has undergone a taphonomic process of permineralization in Iron Sulfide (Pyrite). Permineralization is a process of fossilization in which mineral deposits form internal casts of organisms.

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