Name_____________________________ Date_______ #______ Rock Cycle Stations Lab Station 1: Granitic Igneous Rocks 1. Observe the igneous rocks and record your observations. You may look at the rocks under the microscope as well. Rock Type Crystal Size Color Uses/Other Information Pegmatite Granite Rhyolite Obsidian Pumice 2. How is cooling time related to crystal size? 3. Why do you think the pumice floats? Station 2: Basaltic Igneous Rocks 4. What 2 metals are found in these rocks composition? 5. What type of chemical reaction do the two metals cause in these rocks? What does it look like? 6. What is an observation about the vesicular basalt? Why do you think it occurred? Station 3: Weathering and Erosion 7. Define weathering, erosion, and deposition. 8. What are 3 types of weathering you see in the pictures and samples? Give examples of each. 9. What are 3 types of chemical you see in the pictures and sample? Give examples of each. Station 4: Sediments 10. List the 6 sediment sizes in order from smallest to largest. You may look at samples under the microscope. Station 5: Clastic Sedimentary Rocks 11. What are the differences between breccia and conglomerate rocks? Breccia Conglomerate 12. What do clastic sedimentary rocks form from? 13. Feel the sandstone samples. Describe your observations. 14. What 2 grain sizes is shale rocks composed of? 15. What 2 observations can you make about the shale samples? Station 6: Organic Sedimentary Rocks 16. What are organic sedimentary rocks formed from? 17. Describe the bituminous coal. Pick it up, but DO NOT break apart! 18. Describe coquina. Station 7: Chemical sedimentary Rocks 19. How are chemical sedimentary rocks formed? 20. What is a geode? Station 8: Geologic History Clues 21. What are some of the clues to geologic history that can be observed in the following rocks? Rock Sample Number Geologic History Evidence Shale #1 Shale #2 Shale #3 Station 9: Metamorphic Rocks 22. Record your observations for the following metamorphic rocks. Type of Rock Slate Observations Phyllite Schist Garnet Schist Gneiss Station 10: Metamorphic Monomineralic (1 Mineral) Rocks 23. Read the description of quartzite. Record your observations. 24. Compare the anthracite coal to the bituminous coal you observed at station 6. 25. Read the description of marble. Record your observations.