File:Blue diopsidite skarn Buryatia Republic, Transbaikalia, eastern Siberia.jpg
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| Description |
Blue diopsidite skarn (tumble-polished specimen) from the Neoproterozoic of the Dovyren Highlands, eastern Siberia, Russia. Skarn is a coarsely-crystalline, contact metamorphic rock. The attractive rock shown here is a rare variety of skarn dominated by bluish-colored diopside pyroxene (“violane” or “violan”) ((Ca,Mg,Fe)₂Si₂O₆). Such rocks are called diopsidite skarn. Geologic origin & context & age: magnesium skarn formed by metamorphism of dolostone xenoliths by a gabbro-peridotite layered intrusion, Yoko-Dovyrensky Massif, Neoproterozoic, ~700 Ma. Locality: Dovyren Highlands, Buryatia Republic, Transbaikalia, eastern Siberia, Russia. |
| Date | |
| Source | Blue diopsidite skarn (Neoproterozoic, about 700 Ma; Dovyren Highlands, Buryatia Republic, Transbaikalia, eastern Siberia, Russia) 1 |
| Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15079580766. It was reviewed on 1 September 2014 by FlickreviewR 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 | 19:22, 1 September 2014 | | 1,984 × 1,352 (834 KB) | Tillman | Transferred from Flickr via Flickr2commons |
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