Goethite after Pyrite
specimen number:
8632515
location:
Green Monster Mtn, Prince of Wales Island, Alaska, USA
description:
Impressive example for this pseudomorph from this Alaska locality. Cubic crystals of what were once pyrite measuring to 3.0 cm on edge, these now replaced by lustrous brown goethite, forming a large matrix less cluster. This is in really good condition. There are no points of attachment. An old specimen likely from the 1960s.
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Related by Mineral (Goethite):
Goethite — Michigan
Origin: Jackson Mine, Negaunee, Marquette Co., Michigan, USA
Number: (2062382)
Size: 3.5 x 3.0 x 2.0 cm (miniature)
Goethite — Czech Republic
Origin: Pribram, Bohemia, Czech Republic
Number: (1052701)
Size: 12.0 x 6.5 x 6.0 cm (cabinet)
Goethite — Italy
Origin: Elba, Tuscany, Italy
Number: (9302341)
Size: 4.5 x 3.5 x 3.0 cm (miniature)

