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.