Earth's Surface: Minerals (12:14)
Geology is the study of the Earth and its surface. In this video, we learn about minerals - an important building block of our planet. They are found in rock, in the Earth’s crust and in the soil. And many key elements are minerals, such as coal. This video investigates what minerals are, how they are formed and how they are classified. We learn about the crystalline forms of minerals and terms such as streak and silicate minerals.
Properties of Minerals (5:45)
Mineralogists have identified approximately 4,000 minerals. A mineral's crystal structure determines its properties. Learn six properties scientists look for to identify a mineral.
