Lab 2 Worksheet Minerals and Rocks fall 2023- jt

Lab 2 Worksheet Minerals and Rocks (50 points, 50 possible answers) Name Jackson Thoele (-2 points if missing) Date 10/5/23 The Powerpoints are your lab book. Use them, and the Mineral and Rock Identification attachments, to answer all questions in each part. Please explain everything in your own phrases and sentences. The worksheet is NOT the quiz! Use the powerpoint as you work to find your answers, or how to determine answers. This is the learning stage of the class. Humans learn by repetition, so by going over everything several times by hunting down answers, you will gain more than you think you will! Part 1 Minerals ( Use mineral box, Mineral ppt, and Mineral Identification Guide ) Description of your personal sample : Include color, luster, hardness, cleavage or fracture, and special or distinguishing characteristic if any. Use the mineral and rock identification handouts in the content area. Non-observable info will take points off. Mineral Number Luster Color Hardness Streak Cleavage or Fracture Other Mineral Name 1 Vitreo us Yellow Green Purple 4 White 4 directions Translu cent Flourite `2 Vittreo us White Red Green Pink 6 white 1 Direction New Feldspar Potassium 3 Metalli c/ Dull/ Earthy Gray Black Brown 5.5 to 6.5 Red brown Fracture Streaky Hematite 4 Metalli c Pale Brass Yellow 6 to 6.5 Brown Fracture Gold Pyrite 5 Vitreo us Colorl ess 7 None Conchoid al Fracture Hard Quartz 6 Vitreo us White Yellow 3 White Rhomboh edral Reacts with Acid Calcite 7 Vitreo us - Colorl ess 2 to 2.5 Colorles s 1 Direction Flaky Mica: Muscovite

Subm etallic Yellow Brown 8 Metalli c Black 6 Black Fracture Magneti c Magnetic 9 Dull White Gray Yellow 2 White Good 1 Direction Chalky Gypsum : Alabaster 10 Silky White Grey Green 1 White 1 direction Waxy Talc 11 Vitreo us White Pink 2.5 White Cubic Salty Halite 12 Vitreo us - Sub metalli c Black 2.5 to 3 Colorles s 1 Direction Flat Mica : Biotite 13 Metali c Black Grey 1 to 2 Black 1 Direction Greasy Graphite 14 Silky/ Pearly White Gray 2 White Good 1 Direction Fibrous Gypsum: SatinSpar 15 Vitreo us Colorl ess 2 White Good 1 direction – Poor 2 direction Crystali ne Gypsum : Selenite 1. Between hematite and magnetite, which one has a red/brown streak? a. Hematite 2. Which of following images is potassium feldspar and which is plagioclase feldspar? Explain how you can tell. a. answer: Potassium Feldspar