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Vocabulary


solution- a mixture in which one substance dissolves in another

vein- a narrow channel or slab of a mineral that is much different from the surrounding rock

Outline


T

How Minerals Form=
  • a volcanic pipe formed in the mantle at a depth of 120 kilometers or more and heat change carbon atoms into diamond
    • Processes that form mineral

      • minerals can form through crystallization of melted material
      • minerals can form through crystallization of material dissolved in water
    • Minerals From Magma

      • slow cooling leads to the formation of large crystals
      • fast cooling leads to small crystals
    • Minerals From Hot Water Solutions

      • sometimes elements that form a mineral dissolve in hot water
        • when the hot water solution cools it crystallizes and becomes a mineral
      • pure metals that crystallize often form veins
        • a vein is a narrow channel or slab of mineral that is different from the surrounding rock
      • many minerals form where tectonic plates spread along the mid-ocean ridge
        • ocean water seeps through cracks in crust
        • then it touches the magma and it dissolves minerals from the crust and goes up
        • when it hits the sea it crystallizes and goes to the ocean floor
        • science_homework_-_42.JPG
    • Minerals Formed by Evaporation

      • minerals can form when solutions evaporate
        • halite, gypsum, calcite crystals, minerals containing potassium form by evaporatiom
    • Where Minerals Are Found

      • Earth's crust is made up of common rock forming minerals
        • rare and less common rocks are not distributed evenly throughout the crust
      • valuable minerals found in areas of volcanic activity and mountain building
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