science

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Across
  1. 3. the color of the mineral powder
  2. 5. the property of a mineral breaking in a more or less random pattern with no smooth planar surfaces. cleavage
  3. 6. the ratio of its mass to the mass of an equal volume of water
  4. 10. pigment of the rock
  5. 11. is highly resistant to chemical attack and has the highest strength to weight ratio of any metal.nickle
  6. 12. a reddish-gold colored metal that is ductile, malleable, and an effective conductor of heat and electricity
Down
  1. 1. a measure of its relative resistance to scratching, quartz
  2. 2. a type of rock salt
  3. 4. a crystalline mineral made out of oxygen and silicon
  4. 7. has a perfect cleavage in three directions
  5. 8. the overall sheen of its surface
  6. 9. a mineral that Keeps our nerves and muscle running smoothly