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Sediment Comparators
Without Glued-On Grains That Wear Off, Chart Stands up to Repeated use.
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Ward's® Illite Shale
Green shale which contains approximately 85% Illite. Impurities may include other clay minerals, such as micas and feldspars.
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Ward's® Black Sand
Clearance
1 pound of black sand packaged in a heat-sealed bag.
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