| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Colorado > Sphalerite var. Marmatite with Siderite |
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| DESCRIPTION: | No. 71951 |
| Mineral: | Sphalerite var. Marmatite with Siderite |
| Locality: | Eagle Mine, Gilman, Eagle County, Colorado |
| Description: | Double-sided plate of lustrous black marmatite crystals, the iron-rich variety of the mineral species sphalerite, to 5 mm with translucent gray-brown flattened rhombohedral (disc-shaped) siderite crystals to 7 mm on one side. Ex. Lucile Squier (1905-2007) collection, collected ca. 1970 |
| Overall Size: | 4.5x4.5x1.5 cm |
| Crystals: | 1-7 mm |
| Archived: | For reference only |
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