File:Binghamite (Cuyuna North Range, Minnesota, USA).jpg
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Summary
| Description |
Binghamite from the Precambrian of Minnesota, USA. (public display, Minnesota Discovery Center, Chisholm, Minnesota, USA) Binghamite has been characterized as a mineral, or as a variety of quartz, but it is not. Binghamite is a rock having chalcedony (= microscopic fibrous quartz) intergrown with fibrous iron oxide - hematite and/or goethite. Some sources say that binghamite is chalcedony replacement of fibrous goethite-hematite. This material has chatoyancy - the same play of light and color as seen in tiger's eye quartz, which also has a fibrous structure. Apparent synonyms, or near-synonyms, of binghamite include silkstone and cuyunite. Locality: iron mine in the Cuyuna North Range (probably near the town of Crosby), Crow Wing County, central Minnesota, USA |
| Date | |
| Source | Binghamite (Cuyuna North Range, Minnesota, USA) 5 |
| Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/22917986494. It was reviewed on 29 December 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:44, 29 December 2015 | | 4,000 × 3,000 (3.84 MB) | Tillman | Transferred from Flickr via Flickr2Commons |
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