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Notes on Minerals


What is a mineral?

It is a naturally occurring, inorganic solid that has a definite chemical composition and crystal structure.

·        Most minerals are made from the eight most abundant elements in Earth’s crust: Oxygen, Silicon, Aluminum, Iron, Calcium, Sodium, Potassium, and Magnesium.

·        These minerals make up most of the rocks on the crust.

·        Quartz, Calcite, Augite, Hematite, Micas, and Feldspars are examples of rock-forming minerals.