Igneous Rocks

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Across
  1. 3. any molten earth rock material
  2. 6. the large crystals in a porphoritic igneous rock
  3. 7. the general term for dark colored igneous rocks
  4. 8. the volcanic form on most Hawaiian Islands
  5. 9. the plate boundary type that impacts Iceland
  6. 10. the group of minerals that are most common in igneous rocks
  7. 11. the texture term for obsidian
  8. 12. the last name of the geologist who predicted igneous crystallization order
Down
  1. 1. igneous magma that reaches the earth's surface
  2. 2. coarsely crystalline igneous adjective
  3. 4. smooth, glassy volcanic rock
  4. 5. also know as a composite volcano