File:Ruby rod (manmade) 1.jpg

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English: Ruby is a red, gem-quality variety of corundum, which is aluminum oxide (Al2O3). Ruby and corundum have a nonmetallic luster, form hexagonal crystals, have a white streak, and are very hard (H = 9 on the Mohs Hardness Scale). Ruby can be synthetically manufactured - seen here is a manmade rod of rudy under white light.
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Source https://www.flickr.com/photos/47445767@N05/53662484174/
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/53662484174. It was reviewed on 18 April 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

18 April 2024

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current14:34, 18 April 2024Thumbnail for version as of 14:34, 18 April 20242,989 × 835 (2.09 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/53662484174/ with UploadWizard

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