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 — Morocco
Origin: Tizirine, Ouarzazate, Draa-Tafilalet, Morocco
Number: (5003617)
Size: 9.5 x 8.5 x 3.5 cm (cabinet)
Goethite — Spain
Origin: San Valentin open pit, Sancti Espiritu, La Union, Murcia, Spain
Number: (5004540)
Size: 5.5 x 4.0 x 4.0 cm (miniature)
Goethite — China
Origin: Tongbei, Zhangzhou, Fujian, China
Number: (5005053)
Size: 6.0 x 5.5 x 1.5 cm (small-cabinet)
Related by Location (Green Monster Mtn):
Epidote — Alaska
Origin: Green Monster Mtn., Prince of Wales Island, Alaska, USA
Number: (5004265)
Size: 7.5 x 2.5 x 2.0 cm (small-cabinet)