![](http://www.alamy.com/thumbs/6/B49794DC-B6E9-4AF9-B66A-85B37DFEA742/2A3D38F.jpg)
Skiddaw Granite - a medium-grained biotite granite comprising orthoclase, oligoclase, quartz and biotite
Size: 4800px × 3198px
Photo credit: © Fossil & Rock Stock Photos / Alamy / Afripics
License: Licensed
Model Released: No
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