Minerals

​OBJECTIVES

At the end of the lesson, the students will be able to:

• identify common rock-forming minerals using their physical and chemical properties.

• identify the minerals important to society.

• classify rocks into igneous, sedimentary, and metamorphic.

Multiple Choice

Rocks vary in color, size, texture and shape. They are classified based on how they were formed. Which of the following deals with the study of rocks?

• a. BIOLOGY

• b. GEOLOGY

• c. PALEONTOLOGY

• d. PETROLOGY

​is the study of rocks - igneous, metamorphic, and sedimentary - and the processes that form and transform them.

​PETROLOGY

is the study of the chemistry, crystal structure and physical properties of the mineral constituents of rocks.

​MINERALOGY

Multiple Choice

Halite is made when a body of seawater becomes closed off and evaporates and salt precipitates out and is deposited as crystallized halite. What type of sedimentary rock is formed?

• a. Clastic

• b. Chemical

• c. Organic

• d. Pyroclastic

This is a common way for chemical sedimentary rocks to form and the rocks are commonly called evaporites. They are typically made up of the minerals halite (calcium chloride, or rock salt) and gypsum (calcium sulfate).

• are composed of minerals. A mineral is a naturally occurring substance which is usually solid, crystalline, stable at room temperature and inorganic.

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​ROCKS