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Crowley Ridge Chert, Arkansas

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  • Crowley Ridge Chert, Arkansas

    Crowley's Ridge extends north-south from Clay County to Phillips County. Is translucent cryptocrystalline quartz that comes in different shades of tan, cream, light brown, and yellow due to the penetration and oxidation of trace amounts of iron. Turns red when heat treated. A waxy medium to fine grained texture.



    photo courtesy of University of Iowa


    photo and example courtesy of Artifascination, Cache River point found in Greene County Arkansas
    Searching the fields of Northwest Indiana and Southwestern Michigan
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