2Minerals vs. RocksMineral: Natural, solid substance that has a specific chemical composition and physical structure5 ways to classify MINERALS:StreakFluorescenceCrystal StructureCleavageHardness
3Mineral 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
4Minerals vs. Rocks Rocks: a solid formation of minerals 3 Major Types: Igneous RockSedimentary RockMetamorphic Rock
5Igneous Rock Igneous rock forms when melted rock hardens 2 Types: Intrusive: Cools Inside EarthExtrusive: Cools Outside Earth
6Sedimentary RockSedimentary Rock is formed when layers of sediments bind together.
7Metamorphic RockMetamorphic Rock is formed when extreme heat and pressure change igneous, sedimentary, or other metamorphic rocks.