Colorful mica and white-to-black quartz and feldspar.
Showing posts with label rocks and minerals. Show all posts
Showing posts with label rocks and minerals. Show all posts
Tuesday, February 7, 2012
Friday, February 3, 2012
slap them down
Photograph of slice of rock. Field of view 1 mm wide. The brown is biotite mica. The white strings are muscovite mica. The blobs are quartz sand grains.
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