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Feldspars Introduction
Feldspars are the most abundant minerals in the Earth’s crust. They are silicate minerals and are referred to as framework silicates because the tetrahedral (of Si and Al four coordinated by oxygen) are linked together in three dimensions to make a framework. Note the tetrahedral are connected through sharing of all oxygen atoms in the coordination polyhedral. Two types of feldspar.
Feldspars Mineral Production Process: