AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Colorado > Goethite pseudomorphs after Pyrite

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Goethite pseudomorphs after Pyrite from road cut on Rt. 600 (Coffee Pot Road), near Dotsero, Eagle County, Colorado

 
Goethite pseudomorphs after Pyrite from road cut on Rt. 600 (Coffee Pot Road), near Dotsero, Eagle County, Colorado

Goethite pseudomorphs after Pyrite from road cut on Rt. 600 (Coffee Pot Road), near Dotsero, Eagle County, Colorado

Goethite pseudomorphs after Pyrite from road cut on Rt. 600 (Coffee Pot Road), near Dotsero, Eagle County, Colorado

DESCRIPTION:No. 77616
Mineral:Goethite pseudomorphs after Pyrite
Locality:road cut on Rt. 600 (Coffee Pot Road), near Dotsero, Eagle County, Colorado
Description:Well-defined lustrous brown goethite pseudomorphs after striated cubic pyrite crystals to 6 mm. Pyrite, FeS2, crystallized first, then altered molecule-by-molecule to goethite, Fe3+O(OH), maintaining the original pyrite shape. Pseudomorph = false form. Collected in August 1994
Overall Size:9x9x9 mm
Crystals:1-6 mm pseudos
Status: Sold - Posted here for reference only
Buy similar: Minerals from Rocky Mountain States, USA > Pseudomorphs (False Form)

 

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