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File:Granite (Silver Plume Granite, Mesoproterozoic, 1.42 Ga; Larimer County, Colorado, USA) 4 (30871858724).jpg

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Granite with potassium feldspar, quartz, biotite mica, and muscovite mica from the Precambrian of Colorado, USA. (~8.2 cm across at its widest)

Geologic unit: Silver Plume Granite, early Mesoproterozoic, 1.42 Ga

Locality: Larimer County, northern Colorado, USA
Date
Source Granite (Silver Plume Granite, Mesoproterozoic, 1.42 Ga; Larimer County, Colorado, USA) 4
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@N05/30871858724 (archive). It was reviewed on 11 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

11 December 2019

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Date/TimeThumbnailDimensionsUserComment
current06:17, 11 December 2019Thumbnail for version as of 06:17, 11 December 20193,093 × 2,588 (6.16 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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