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WHITE MOUNTAIN PEBBLES
There were two unique pebbles in the White Mountain sample. The porphyry shown to the left below was covered in deep depressions. You couldn't see them just by looking at the sample because it was so small. Under magnification, the texture became apparent. The shist to the lower right had interesting flow patterns. Both photographs were taken at 1X MAGNIFICATION.
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This sample was contributed by a faculty member from the Anthony A. Andrews School in St. Michael, Alaska.
The Andrews School is a member of the Bering Strait School District.
Return to Alaskan Sand to view a high resolution version of all Alaska samples. Click the thumbnails above to view high resolution versions of these images.
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