Colorful Keokuk geodes from Lewis County, Missouri.
From: Rocks & Minerals
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Date: 7/1/2003
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Author: Vaisvil, Kenneth
"This is a once-in-a-lifetime opportunity," exclaimed a collector from the Keokuk area who was working beside me splitting geodes out of shale. We were toiling in the newly blasted material where construction was preparing roadbed to expand U.S. Highway 61 from two to four lanes just south of Canton, Missouri, as part of the "Avenue of the Saints" highway project (fig. 1). Many locals knew that this construction might expose geode-bearing sections of the Warsaw Formation, but no one ...
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