File:Gold Venetian Granite (garnetiferous gneiss, Neoproterozoic to Cambrian, ~500-650 Ma; Nova Venecia, Espirito Santo State, Brazil) (14813522385).jpg

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Venetian Gold Granite - a late Neoproterozoic to Cambrian-aged garnetiferous gneiss from Brazil. It’s quarried at Nova Venecia, in Espirito Santo State, coastal southeastern Brazil. Metamorphism occurred at ~650-500 million years ago. It contains quartz, feldspar, mafic minerals, and very dark red garnets.

Gneiss is a common high-grade, foliated metamorphic rock characterized by alternating bands of light- and dark-colored minerals. It forms by metamorphism of schists or felsic-to-intermediate intrusive igneous rocks (e.g., granite).
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Source Gold Venetian Granite (garnetiferous gneiss, Neoproterozoic to Cambrian, ~500-650 Ma; Nova Venecia, Espirito Santo State, Brazil)
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@N05/14813522385 (archive). It was reviewed on 2 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

2 December 2019

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current06:18, 2 December 2019Thumbnail for version as of 06:18, 2 December 20191,134 × 1,076 (292 KB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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