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ROCKS & MINERALS--Fill in the blank

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  • The tendency of a mineral to break into flat sheets.
    Cleavage
  • Rocks buried deep within the earth that change because of heat and pressure
    Metamorphic
  • Rocks formed from hot lava that cools and hardens
    Igneous Rock
  • the way a mineral's surface reflects light
    luster
  • A mixture of different minerals, volcanic glass, organic matter and other materials.
    Rock
  • Location of the first gold rush in America
    North Carolina
  • Rocks formed when sand, dead plants, shells or other organic matter stick together to like glue.
    Sedimentary
  • Not man-made; occurs in nature, and our supply is limited (we can run out of it)
    Natural Resource
  • The hardest mineral in the world
    Diamond
  • Stress that squeezes rocks together and causes them to fold or fracture.
    Compression
  • The ability to resist scratching
    Hardness
  • Color, luster, streak, hardness, cleavage, and fracture are __ __ that help scientists identify rocks and minerals
    Physical Properties
  • The tendency of a mineral to break into jagged, rough, smaller pieces.
    Fracture
  • The chalky line left behind when you rub or scrape a mineral against a tile.
    Streak
  • a solid piece of matter with particles arranged in a repeating pattern called a crystal
    Mineral
  • The name of the scale used to determine a mineral's hardness
    Moh's Hardness Scale
  • Which mineral is the hardest of all?
    Diamond
  • A nonliving solid substance that can be described by a chemical formula
    Inorganic
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