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Graves Mountain Sand, Image Credit: Leo Kenney
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Graves Mountain Sand
Graves Mountain in Georgia is well known for the variety of minerals that can be found there. In this single sample of sand we can see a good example of that variety. The striking blue grains are lazulite. The gold metallic bits are pyrite. The pale, blue-green bits are kyanite. The sparkling orangey-red bits are pyrophyllite. And the white is quartz. (Note: Each sand grain is about 2mm wide.)
Image Credit: Leo Kenney