File:Azul Bahia Granite (sodalite metasyenite, Itabuna Syenite Complex, Neoproterozoic, ~676 Ma; Fazenda Hiassu, Bahia State, Brazil) 3 (33847839002).jpg

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Azul Bahia Granite - sodalite metasyenite from the Precambrian of Brazil.

“Azul Bahia Granite” from eastern Brazil has the reputation for being a very expensive decorative stone. It's distinctive in having considerable non-iridescent blue coloration. “Azul Bahia Granite” is a sodalite metasyenite (a.k.a. sodalite foyaite, sodalite foidolite), with the minerals sodalite (= blue) (Na4(Al3Si3)O12Cl), feldspars and feldspathoids (= white), mafic minerals (= black), and epidote (= greenish) (Ca2FeAl2(Si2O7)(SiO4)O(OH)). This material comes from the Itabuna Syenite Complex, a late Neoproterozoic unit (~676 Ma) that has intruded through the São Francisco Craton.

Locality: commercial quarry at Fazenda Hiassu, city of Itaju do Colonia, southeastern Bahia State, eastern Brazil
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Source Azul Bahia Granite (sodalite metasyenite, Itabuna Syenite Complex, Neoproterozoic, ~676 Ma; Fazenda Hiassu, Bahia State, Brazil) 3
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@N05/33847839002 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 December 2019

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Date/TimeThumbnailDimensionsUserComment
current02:13, 6 December 2019Thumbnail for version as of 02:13, 6 December 20195,152 × 3,968 (11.38 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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