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Sand Minerals

Minerals in the Sand. November 28 2016 April 3 2018 Jennifer Gonales. Feldspars Feldspars are the most abundant minerals in the Earths crust. This group of silicate minerals is somewhat hard 6-6.5 on Mohs hardness scale is often pink white or grey in color and has two good cleavage planes that meet at nearly a 90 angle figure 1.

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