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Quiz: Rocks and Minerals

Rocks and minerals are so common that many people stop thinking about them. Yet we use the minerals daily and even consume them. Some people collect rocks. They are often used to decorate yards, gardens, and walkways. They may even be used as the walkway. 

This quiz is to test your knowledge of rocks and minerals. Take your time and enjoy the quiz.

  • Question of

    This kind of volcanic rock is formed when froth on the top of lava cools. This is the only kind of rock that naturally floats on water.

    • pumice
    • feldspar
    • sandstone
  • Question of

    Most Aluminum comes from an ore called…

    • chalcedony
    • bauxite
    • jasper
  • Question of

    The softest mineral in the world, sometimes known as soapstone or steatite, is….

    • corundum
    • talc
    • sphalerite
  • Question of

    What radioactive element can be refined from pitchblende ore?

    • uranium
    • cobalt
    • plutonium
  • Question of

    Iron can be refined from this shiny, gold colored rock, which is chemically iron sulfide…

    • quartz
    • perlite
    • pyrite
  • Question of

    Chalcocite is refined to produce what elemental mineral?

    • copper
    • bronze
    • mercury
  • Question of

    This is the most common metal on Earth, and it is extensively mined.

    • copper
    • gold
    • aluminum
  • Question of

    Obsidian, a hard, shiny rock, is often black, but can contain red, green, gray, or white coloration. Obsidian is associated with what kind of rock?

    • volcanic
    • sedimentary
    • metamorphic
  • Question of

    Corundum, a crystalline form of aluminum oxide, is better known as what?

    • Ruby
    • sapphire
    • Both ruby and sapphire, depending on the color
  • Question of

    Dolomite chalk, such as that making up the White Cliffs of Dover, is made up of the shells of millions of tiny sea creatures. When the dolomite chalk is subjected to intense pressure and heat, it becomes a rock known as…

    • slate
    • sandstone
    • marble


What do you think?

15 Points

Written by Rex Trulove

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