Origin of Keokuk Geodes – Dr. Francis M. Van Tuyl
THE ORIGIN OF THE GEODES OF THE KEOKUK BEDS.By Francis M. Van Tuyl.Pages 169, 170, 171, 172PROBABLY nowhere else in America do geodes attain such an exceptional development as in…
THE ORIGIN OF THE GEODES OF THE KEOKUK BEDS.By Francis M. Van Tuyl.Pages 169, 170, 171, 172PROBABLY nowhere else in America do geodes attain such an exceptional development as in…
Here is the text of an American Mineralogist Reprint. Includes a description of the Keokuk geode beds from 1917! [PDF]FAMOUS MINERAL LOCALITIES. I. THE KEOKUK GEODE REGION File Format: PDF/Adobe…