2 Minerals vs. RocksMineral: Natural, solid substance that has a specific chemical composition and physical structure5 ways to classify MINERALS:StreakFluorescenceCrystal StructureCleavageHardness
3 Mineral Classification Streak: Color of the powder left behind when a mineral is rubbedFluorescence: Glows under UltraViolet LightCrystal Structure: Atom arrangement in a specific shapeCleavage: Direction of a break in a mineralHardness: Mohs Hardness Scale
4 Minerals vs. Rocks Rocks: a solid formation of minerals 3 Major Types: Igneous RockSedimentary RockMetamorphic Rock
5 Igneous Rock Igneous rock forms when melted rock hardens 2 Types: Intrusive: Cools Inside EarthExtrusive: Cools Outside Earth
6 Sedimentary RockSedimentary Rock is formed when layers of sediments bind together.
7 Metamorphic RockMetamorphic Rock is formed when extreme heat and pressure change igneous, sedimentary, or other metamorphic rocks.