Presentation on theme: "Chapter 7 Rocks and Minerals. Minerals vs. Rocks Mineral: Natural, solid substance that has a specific chemical composition and physical structure "— Presentation transcript:
Chapter 7 Rocks and Minerals
Minerals vs. Rocks Mineral: Natural, solid substance that has a specific chemical composition and physical structure 5 ways to classify MINERALS: 1. Streak 2. Fluorescence 3. Crystal Structure 4. Cleavage 5. Hardness
Mineral Classification 1. Streak: Color of the powder left behind when a mineral is rubbed 2. Fluorescence: Glows under UltraViolet Light 3. Crystal Structure: Atom arrangement in a specific shape 4. Cleavage: Direction of a break in a mineral 5. Hardness: Mohs Hardness Scale
Minerals vs. Rocks Rocks: a solid formation of minerals 3 Major Types: 1. Igneous Rock 2. Sedimentary Rock 3. Metamorphic Rock
Igneous Rock Igneous rock forms when melted rock hardens 2 Types: 1.Intrusive: Cools Inside Earth 2.Extrusive: Cools Outside Earth
Sedimentary Rock Sedimentary Rock is formed when layers of sediments bind together.
Metamorphic Rock Metamorphic Rock is formed when extreme heat and pressure change igneous, sedimentary, or other metamorphic rocks.