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File:Polished "Blue Biggs Jasper" arrowhead (Beggs Canyon, Oregon, USA) 1.jpg

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Description
English: (~7.7 centimeters tall)

(made by Warren Whitmer)

"Blue Biggs Jasper" is a rockhound term for colorful, complexly patterned siliceous material ("jasper") from Oregon. The geometry of the dark banding is similar to the iron oxide-rich "Liesegang banding" present in many porous rocks such as sandstone. Oddly, this rock is tight and nonporous, apparently from post-banding silification.

Locality: unrecorded/undisclosed site in Oregon, USA (attributed to "Biggs Canyon")
Date
Source https://www.flickr.com/photos/47445767@N05/51429505950/
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
You are free:
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  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/51429505950. It was reviewed on 7 September 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

7 September 2021

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current14:44, 7 September 2021Thumbnail for version as of 14:44, 7 September 20211,421 × 3,080 (2.82 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/51429505950/ with UploadWizard

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