Earth Sciences 1022A/B Lecture 3: Earth Rocks Lecture #3
21 Nov 2018
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Almost everything we use for devices and other purposes are minerals: anything that we don"t get from animals but use usually a mineral, there are over 50 different minerals in computers. We do not learn about minerals often, where they come from and their importance. Minerals are the building blocks of rocks: they are the foundation of the earth we live on. 3) has a definite chemical composition: allows for a slight bit of impurity. Element - a chemical element is a pure chemical substance that cannot be broken down to other substances by normal chemical means: elements familiar to most people include hydrogen, oxygen, nitrogen, sulphur, iron, zinc, lead, etc, The smallest particle of matter that retains the characteristics of an element is an atom: on the level of atoms, we can think of an element as being a specific type of atom. Minerals must be a combination of multiple elements: ex.
