• A mineral is a solid material that forms by a natural process.
  • A mineral can be made of an element or a compound.
  • Its chemical composition is different from other minerals.
  • Each type of mineral has physical properties that differ from others.
  • These properties include crystal structure, hardness, density, and color.
  • For example, silver is a soft, shiny metal.
  • Salt is a white, cube-shaped crystal.
  • Diamond is an extremely hard, translucent crystal.
  • Some minerals grow when rocks are exposed to high pressures and temperatures.
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