File:Quartz crystals (Coleman Quartz Mine, Arkansas, USA) 1.jpg
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Summary
[edit]DescriptionQuartz crystals (Coleman Quartz Mine, Arkansas, USA) 1.jpg |
English: Hydrothermal vein quartz (SiO2) at the Coleman Quartz Mine in Arkansas, USA.
The Ouachita Mountains of Arkansas were formed during the Late Paleozoic Ouachita Orogeny. That mountain forming event was accompanied by the intrusion of hydrothermal quartz veins in some areas. The Coleman Quartz Mine allows for close examination and collection of spectacular quartz crystals from these veins. The hydrothermal quartz vein shown above has abundant, well-formed crystal faces and crystal terminations. The vein is Late Pennsyvlanian to Permian in age. Quartz veins at Coleman Quartz Mine have intruded quartzose sandstones (quartz arenites) of the Middle Ordovician Blakely Sandstone. Location: Coleman Quartz Mine, south of Jessieville, northern Garland County, west-central Arkansas, USA (34º 39.700' North, 93º 06.072' West) |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/8291568006/ |
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@N05/8291568006. It was reviewed on 22 December 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
22 December 2021
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current | 16:47, 22 December 2021 | 960 × 691 (541 KB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/8291568006/ with UploadWizard |
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