A NICE GUIDE COVERING THE BEACH STONES FOUND ON THE SHORES OF LAKE SUPERIOR.
IS THIS AN AGATE?
AN ILLUSTRATED GUIDE TO LAKE SUPERIOR'S BEACH STONES
MICHIGAN WRITTEN AND ILLUSTRATED BY SUSAN ROBINSON Copyright 2001 Measures 5-1/2" x 8-1/2" with 23 pages. Covers the Geological History of the Keweenaw Region, covering many minerals found there. Quartz, Chert, Agate, Jasper, Chlorite, Epidote, Prehnite, Calcite, along with Minerals like copper, Datolite, Chlorastrolite (Greenstone) and Thomsonite. Very informative. Condition - Excellent. NEW...
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