| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Alaska > Goethite pseudomorphs after Pyrite |
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| DESCRIPTION: | No. 58677 |
| Mineral: | Goethite pseudomorphs after Pyrite |
| Locality: | Prince of Wales Island, Alaska |
| Description: | Sharp, well formed brown goethite pseudomorphs after rectangular striated pyrite crystals to 28 mm with tetrahexahedral faces on one corner. The pyrite crystallized first then altered molecule by molecule to goethite while maintaining the pyrite shape. Ex. Judy and Chris Cook collection |
| Overall Size: | 30x30x20 mm |
| Crystals: | 5-28 mm |
| Archived: | For reference only |
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