GEOL120 1st Edition Lecture 6Outline of Last Lecture I. Minerals are the building block of rocksII. mineral drive some economicsIII. mineral products define some historical agesIV. Mineral CharacteristicsV. What is crystallineVI. Crystals VII. Interfacial angleVIII. Crystal Lattice (3D)IX. Chemical bonding & crystalsX. PolymorphXI. Crystal Growth XII. Growth ProcessXIII. Mineral properties colorXIV. SilicatesOutline of Current Lecture I. FreezeII. MagmaIII. LavaIV. MeltV. Viscosity (noun)VI. Igneous processesVII. Intrusive igneous rocksVIII. Extrusive igneous rocksIX. Melting RocksX. Misconception about MeltingCurrent LectureXI. Freezea. Change physical state from liquid to solidXII. Magmaa. Molten (liquid state) rock beneath the earth’s surfaceXIII. Lavaa. Molten (liquid state) rock that has flowed onto the earth’s surfaceXIV. Melta. NounThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.i. Molten (liquid state) liquid rockb. Verbi. To change physical state from solid to liquidXV. Viscosity (noun)a. Liquid state resistance to flowi. Ex1. Honey has a high viscosity2. Water has a low viscosityXVI. Igneous processesa. When molten rock freezes we get igneous rockXVII. Intrusive igneous rocksa. form below the surfaceXVIII. Extrusive igneous rocksa. Form above the surfaceXIX. Melting Rocksa. Remember the lithosphere, asthenosphere and mantle are solid rockXX. Misconception about Meltinga. Earth’s interior is molten (NO)b. The Mantle is liquid (NO)c. Melting occurs everywhere at depth because it is so hot