Module 3 Vocabulary

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Across
  1. 1. minerals that contain silicon and oxygen, and usually one or more additional elements
  2. 3. a mineral that contains a valuable substance that can be mined at a profit
  3. 7. when a mineral breaks with rough or jagged edges
  4. 9. a naturally occurring, inorganic solid with a specific chemical composition and a definite crystalline structure
  5. 10. the way that a mineral reflects light from its surface
  6. 11. molten material that forms and accumulates below Earth's surface
  7. 12. the color of a mineral when it is broken up and powdered
Down
  1. 1. the ratio of the mass of a substance to the mass of an equal volume of water at 4 degrees Celsius
  2. 2. a solid in which the atoms are arranged in repeating patterns
  3. 4. a measure of how easily a mineral can be scratched
  4. 5. a geometric solid having four sides that are equilateral triangles, resembling a pyramid
  5. 6. valuable minerals that are prized for their rarity and beauty; very hard and scratch resistant
  6. 8. when a mineral splits relatively easily and evenly along one or more flat planes