| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Colorado > Hematite pseudomorphs after Siderite over Microcline |
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| DESCRIPTION: | No. 77824 |
| Mineral: | Hematite pseudomorphs after Siderite over Microcline |
| Locality: | Lake George District, Park County, Colorado |
| Description: | Large cluster of dark gray-metallic hematite pseudomorphs after rhombohedral siderite crystals to 15 mm over limonite-stained microcline. The siderite crystallized first, then altered to hematite, maintaining the original siderite rhombic shape. |
| Overall Size: | 10x7x4 cm |
| Crystals: | 5-15 mm pseudos |
| Archived: | For reference only |
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