File:Chrysotile in serpentinite 8.jpg
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English: Chrysotile is a serpentine-group mineral having the formula Mg3Si2O5(OH)4 - magnesium hydroxy-silicate. It has a greenish to yellowish-brown to whitish color, a nonmetallic, silky luster, a white streak, is moderately soft (about 2.5 on the Mohs Hardness Scale), and has a fibrous fracture - the fibers are flexible. Chrysotile is often referred to as "white asbestos".
Chrysotile is a component of many serpentinites, a light green to dark green to blackish colored metamorphic rock. Serpentinites form by metamorphism of olivine-rich peridotites in the presence of water. If chrysotile is present, it's often in the form of "veins" - fractures subsequently filled with white asbestos fibers. This type of occurrence has been called "vein serpentinite" (e.g., Coleman, 1971). Reference cited: Coleman (1971) - Petrologic and geophysical nature of serpentinites. Geological Society of America Bulletin 82: 897-918. |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/51182880694/ |
| 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@N05/51182880694. It was reviewed on 18 May 2021 by FlickreviewR 2 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 | 17:37, 18 May 2021 | | 3,828 × 2,635 (7.14 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/51182880694/ with UploadWizard |
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