Intergrowths of feldspar and quartz showing characteristic graphic granite structure, natural size; fine graphic granite from Topsham, Sagadahoc County, Maine. 1906.
Dates
Date Taken
1906
Summary
Intergrowths of feldspar and quartz showing characteristic graphic granite structure, natural size; fine graphic granite from Topsham, Sagadahoc County, Maine. 1906. Plate 3-B in U.S. Geological Survey. Bulletin 420. 1910.
Summary
Intergrowths of feldspar and quartz showing characteristic graphic granite structure, natural size; fine graphic granite from Topsham, Sagadahoc County, Maine. 1906. Plate 3-B in U.S. Geological Survey. Bulletin 420. 1910.
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