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Goethite pseudomorphs after Pyrrhotite from St. Gotthard Tunnel, Canton Uri, Switzerland

 
Goethite pseudomorphs after Pyrrhotite from St. Gotthard Tunnel, Canton Uri, Switzerland

Goethite pseudomorphs after Pyrrhotite from St. Gotthard Tunnel, Canton Uri, Switzerland

DESCRIPTION:No. 61168
Mineral:Goethite pseudomorphs after Pyrrhotite
Locality:St. Gotthard Tunnel, Canton Uri, Switzerland
Description:Thin brown goethite pseudomorphs after platy hexagonal pyrrhotite crystals to14 mm. The pyrrhotite crystallized first, then altered molecule by molecule to goethite, maintaining the original shape of the pyrrhotite crystals.
Overall Size:22x12x3 mm
Crystals:4-15 mm pseudos
Status: Sold - Posted here for reference only
Buy similar: Minerals from Europe > Pseudomorphs (False Form)

 

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  John Betts - Fine Minerals gallery of Pseudomorphs (False Form)

 

 

 

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