A to Z Minerals- A Complete Organic Fertilizer A Source of Minerals & Trace Elements Azomite is the name of a special rock in Utah. Early this century geological prospector Rollin Anderson found deposits of montmorillonite clay in a valley south of Salt Lake City. U.S. Bureau of Mines analysis showed the clay is similar to Chilean/Peruvian caliche rocks from which much of the world's nitrate was m
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