Completed Lab 2 Worksheet - Copy

Lab 2 Worksheet Minerals and Rocks (50 points, 50 possible answers) Name Skylah Henderson______ (-2 points if missing) Date 2/9/24_______ PDFs AND HANDWRITTEN SCANS WILL NOT BE GRADED. ANSWERS MUST BE TYPED IN. 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 powerpoint, and Mineral Identification Guide in the Lab powerpoint area of class ) 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 if applicable Mineral Name 1 Metalli c Green 9 none 2 Transpare nt flourite 2 Non- metalli c tan 6 none 2 feldspar 3 metalli c Black/ sparkl e 6 black 1 hematite 4 metalli c green 7 Black fracture pyrite 5 nonme tallic Silver &whit 7 none frac quartz

e 6 nonme tallic opaqu e white 3 white 2 calcite 7 plastic siver 2 none 1 muscovit e 8 metal black 7 black 1 magnetite 9 nonme tallic white 4 white 3 alabaste 10 luster grey 1 White 1 talc 11 Luster opaqu e 3 none 3 halite 12 plastic Opaq ue pink 2 brown 2 biotite 13 metalli c black 4 black 4 graphite 14 Nonm etallic Opaq ue white 1 white 1 satin 15 Non metalli c clear 1 none 1 selenite 1. Between hematite and magnetite, which one has a red/brown streak? Between hematite and magnetite, the one with the red streak is hematite, magnetite has a black streak. 2. Which of the following images is potassium feldspar and which is plagioclase feldspar? Explain how you can tell. a. Plagioclase feldspar

4 (19) Grainy Felsic Pale pumice 5 (20) Smooth Felsic pale Rhyolite 1. What is the difference between granite and rhyolite? a. The different between Granite and rhyoliteis that granite has bigger crystals and rhyolite crystals ate thinner 2. What rock is likely to have plagioclase feldspar, pyroxene, and some olivine, and have crystals large enough to see with the naked eye? a. Feldspar 3. In this image, there is a type of igneous rock. What is it? a. The rock that's floating is a pumice 4. Of the rock samples you have in your box, which of these are extrusive igneous rocks? a. Granite 5. Name the two ultramafic rocks in the igneous powerpoint. Identify which is intrusive and extrusive. a. Peridotite is an igneous intrusive rock b. Komatiite is an extrusive ultramafic rock Part 3 Sedimentary Rocks (Use rock box, Sedimentary Rocks powerpoint, and Rock Identification Guide in the Lab powerpoint area of class) **Used to be two boxes each labeled 1-15, switching to single box labeled 1-30. Minerals are samples 1-15, rocks are samples 16-30. Rock Sample Number Texture Grain Size Other Observations if applicable Rock Name 6 (21) Biogenic .032mm smooth shale

7 (22) Rough &bumpy .125-.25mm Grainy Calc tufa 8 (23) Grainy 1-2mm Full of pebbles sandstone 9 (24) Rough clastic >256mm grainy Conglomerate 10 (25) Lumpy but smooth .063-.125 smooth Limestone 5. How could you determine which cement is holding your sandstone together? a. Acid reaction & color 6. Based on the description of limestones in the lab powerpoint, what type of limestone is shown here? a. b. Coquina, because of the some shell 7. Identify a test to quickly determine any kind of limestone. a. Adding acid to see if it reacts Part 4 Metamorphic Rocks (Use rock box, Metamorphic powerpoint, and Rock Identification Guide in the Lab powerpoint area of class) **Used to be two boxes each labeled 1-15, switching to single box labeled 1-30. Minerals are samples 1-15, rocks are samples 16-30. Rock Sample Texture Parent Rock Other Observations if Rock Name