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Igneous Vocabulary Quiz

  1. ____ aphanitic
  2. ____ basalt
  3. ____ batholith
  4. ____ caldera
  5. ____ cinder cone
  6. ____ dike
  7. ____ diorite
  8. ____ extrusive
  9. ____ felsic
  10. ____ gabbro
  11. ____ granite
  12. ____ igneous
  13. ____ intrusive
  14. ____ laccolith
  15. ____ lava
  16. ____ mafic
  17. ____ magma
  18. ____ mineral
  19. ____ obsidian
  20. ____ phaneritic
  21. ____ pluton
  22. ____ porphyritic
  23. ____ pumice
  24. ____ pyroclastic
  25. ____ rhyolite
  26. ____ rock
  27. ____ shield
  28. ____ sill
  29. ____ stratovolcano
  30. ____ vent
  1. A naturally occurring, inorganic solid with crystalline form, and specific chemical composition.
  2. A rock is an aggregate of one or more minerals.
  3. Large mass of igneous rock formed at depth then exposed through erosion.
  4. Large mass of igneous intruded between existing rock layers.
  5. Dark green to black coarse-textured intrusive igneous rock.
  6. Relating to igneous material ejected from volcanoes.
  7. Very large depression formed by the collapse of a composite volcano.
  8. Igneous rocks with a light-colored granitic composition of feldspar and quartz.
  9. Igneous activity at the Earth's surface.
  10. Igneous rock with large crystals surrounded with a fine grained or glassy matrix.
  11. Igneous rock texture with visible crystals of mostly equal size.
  12. Igneous rocks with dark-colored mineral composition of magnesium and iron materials.
  13. Igneous activity beneath the Earth's surface.
  14. Igneous rock texture with small crystals or grains not visible with the naked eye.
  15. Light colored fine-textured extrusive igneous rock.
  16. Light colored coarse-textured intrusive igneous rock.
  17. Fine-grained mafic igneous rock.
  18. Pipe-like conduit that conducts lava to the volcanic crater.
  19. Glassy volcanic rock with many gas voids or bubbles.
  20. Small volcano made primarily of pyroclastics.
  21. An igneous rock forming from the cooling and crystallization of liquid rock.
  22. Intermediate coarse-grained igneous rock.
  23. Intrusive igneous rock body that intrudes parallel to existing rock layers.
  24. Intrusive igneous rock feature that cuts through surrounding rock.
  25. Volcanic glass with no crystals due to its rapid cooling.
  26. Volcano composed of lava and pyroclastic layers.
  27. Molten rock and gasses beneath the Earth's surface.
  28. Molten rock on the Earth's surface.
  29. Broad gentle sloping volcano made with fluid basalts.
  30. Structure formed by cooling magma beneath the surface.