1. Minerals Bellringer: Turn in Homework from yesterday Get out blank piece of paper to write tonight’s homework questions on.

2. Minerals from Magma Minerals can form from the cooling of magma Magma is molten material found beneath Earth’s surface. If magma cools slowly, the mineral crystals are large. If magma cools quickly, the mineral crystals are small.

3. Minerals from Solution Supersaturated solution= a given volume of water can not dissolve any more solid Mineral crystals will drop out of the solution Also, mineral crystals can form when liquid evaporates

4. Mineral Groups Earth’s crust= 3,000 minerals 30 are common Common= rock-forming minerals 90 elements= crust Common elements= Oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium in order of highest to lowest.

5. Silicates Most abundant elements are oxygen and silicon Silicates= silicon, oxygen, and possibly other elements Make up 96% of minerals on Earth’s crust Examples: feldspar and quartz.

6. Carbonates Metals combine with CO 3 Examples= calcite, dolomite, and rhodochrosite. Primary minerals found in rocks such as limestone, coquina, and marble Distinctive colors: green and blue

7. Oxide Compounds of oxygen and metal Examples: Hematite, Magnetite, Uraninite Uraninite: source of uranium, generate power.

8. Turn in yesterday‘s homework. Start writing these on separate piece of paper 1. Define a mineral. Give 2 reasons why petroleum is not a mineral? 2. How do minerals form from solution? From magma? 3. What are the 2 most abundant elements in Earth’s crust? What mineral groups do these elements form? 4. Identify the other major mineral groups Concept Map: How minerals are formed, magma, solution, mineral groups, examples, common elements.