File:Sodalite metasyenite, Fazenda Hiassu, Bahia.jpg
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Summary
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| Description |
Sodalite metasyenite (“Azul Bahia Granite”) - “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) having sodalite (blue) (Na4(Al3Si3)O12Cl), feldspars & feldspathoids (white), mafic minerals (black), and epidote (greenish) (Ca2FeAl2(Si2O7)(SiO4)O(OH)). It comes from the Itabuna Syenite Complex, a late Neoproterozoic unit (about 676 million years) that intruded through the São Francisco Craton. Locality: commercial quarry at Fazenda Hiassu, city of Itaju do Colonia, southeastern Bahia State, eastern Brazil. |
| Date | |
| Source | Azul Bahia Granite (sodalite metasyenite, Itabuna Syenite Complex, ~676 Ma, Neoproterozoic; Fazenda Hiassu, Bahia State, Brazil) |
| Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/14833303573. It was reviewed on 3 August 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 20:29, 3 August 2014 | | 1,367 × 1,105 (372 KB) | Tillman (talk | contribs) | Transferred from Flickr via Flickr2commons |
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