File:Spinel (Mogok Metamorphic Belt, Jurassic to Miocene; Momeik Township, Shan State, Burma).jpg

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English: Spinel is a magnesium aluminum oxide mineral, MgAl2O4. Iron (Fe) and nickel (Ni) can substitute for the magnesium, which results in a range of colors - clear, green, blue, red, pink, violet. Transparent spinel is a gemstone. It occurs in skarn deposits, where magma has intruded into limestones. Spinel also occurs in some pegmatites.

Seen here are euhedral and anhedral spinel crystals, apparently derived from marble or dolomitic marble in the Mogok Metamorphic Belt of Burma in southeastern Asia. This area is a collision zone between the Indian Plate and the Eurasian Plate. The euhedral grains are octahedral crystals.

Locality: unrecorded site in (apparently) Momeik Township, north-northeast of the town of Mogok, Mandalay Division, Shan State, north-central Burma
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Source https://www.flickr.com/photos/47445767@N05/50731993928/
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@N05/50731993928. It was reviewed on 18 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

18 December 2020

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current15:20, 18 December 2020Thumbnail for version as of 15:20, 18 December 20201,526 × 1,130 (1 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/50731993928/ with UploadWizard

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