<p> Quarter 2 Geology Review</p><p>Minerals</p><p>1. What mineral property is the least reliable when identifying minerals?</p><p>2. What is luster?</p><p>3. What is streak?</p><p>4. How are cleavage and fracture different? </p><p>5. What is hardness?</p><p>6. What’s the hardness of the following testing materials:</p><p>Fingernail _____ Copper_____ Glass_____ Steel_____</p><p>Use the table for questions 7-9. </p><p>Mineral Name Hardness Color Streak Luster Breakage 11. Sphalerite 3.5-4 Yellow, Brown, Black Yellow, light brown Brilliant, resinous Cleavage, 6 sided 21. Malachite 3.5-4 Green Light Green Earthly / Dull Uneven 13. Sulphur 1.5-2.5 Yellow Yellow Earthy / resinous Uneven, poor cleavage 27. Azurite 3.5-4 Blue Light Blue Earthy to Dull Uneven 15. Limonite 4-5.5 Yellow, Brown, Reddish Brown Yellow to Brown Earthy, Dull Uneven 1. Calcite 3 White / clear White Glassy Cleavage 3 directions not 90⁰</p><p>7</p><p>7. You observe a mineral yellow/ brown mineral that has 6 sided cleavage. What mineral on the chart could it be?</p><p>8. What is the hardest mineral on the chart?</p><p>9. Which of the minerals on the chart would scratch glass?</p><p>10. What is a naturally occurring crystalline solid with a definite chemical composition?</p><p>Igneous Rocks 11. Igneous rocks are rocks made from what?</p><p>12. Coarse grained igneous rocks have what size crystals?</p><p>13. Fined grained igneous rocks have what size crystals?</p><p>14. Glassy igneous rocks have what size crystals?</p><p>15. Texture of igneous rocks is related to what?</p><p>16. Mafic rocks tend to be what color?</p><p>17. Felsic rocks tend to be what color? </p><p>18. Intrusive rocks have large crystals, so they must have cooled? (Quickly or Slowly)</p><p>19. Extrusive rocks have small or microscopic crystals, so they must have cooled? (Quickly or Slowly)</p><p>20. What is the difference between magma and lava? </p><p>Plate Tectonics</p><p>21. Name the layers of the earth.</p><p>22. Which layers are made of rock? Solid metal? Liquid metal?</p><p>23. What layer is a semi-solid or rock paste? 24. What’s the difference between the lithosphere and asthenosphere? </p><p>25. Why do plates move? </p><p>26. How do plates move at divergent boundaries? Convergent? Transform? </p><p>27. What landforms are created by plate motion? </p><p>28. What is subduction?</p><p>29. What is a fault?</p><p>30. What is an earthquake? </p><p>31. What do scientists use to figure out what the layers of the earth are made of?</p><p>32. How does magma type affect how dangerous a volcano is?</p><p>33. How does magma type affect the shape of a volcano? </p><p>34. Most dangerous volcano: Least dangerous: </p>