Mineral Crossword

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Across
  1. 2. Compounds of Oxygen and a metal
  2. 4. Contains a valuable substance that can be mined at a profit
  3. 5. Molten lava that forms and accumulates below earth's surface.
  4. 6. Minerals that contain silicon and oxygen, and usually one or more additional elements
  5. 10. A geometric solid having four sides that are equilateral triangles, resembling a pyramid
Down
  1. 1. Rocks Form when lava or magma cool and crystallize
  2. 3. Valuable minerals that are prized for their rarity and beauty
  3. 7. The way that a mineral reflects light from its surface
  4. 8. Melting The process whereby some minerals melt at relatively low temperatures while other minerals remain solid
  5. 9. A solid in which the atoms are arranged in repeating patterns.