As you view the slides, write your notes into the graphic organizers. Include all the information from each slide into the appropriate boxes. Write neatly and carefully. You will not be expected to memorize this information, but this information will be used as a reference throughout our mineral unit and help you become familiar with the different types of minerals that exist.
Minerals are divided into groups based on their chemical composition The two main groups all minerals can be classified into are: Silicates Nonsilicates
Made of Silicon (Si) and Oxygen (O) Example: SiO4 Make up 90% of the Earths crust Combine with elements such as Aluminum (Al), Iron (Fe), Magnesium (Mg), and Potassium (K)
Nesosilicates Willemite – Zn 2 (SiO 4 ) found in Franklin, NJ Garnet - A 3 B 2 (SiO 4 ) 3