Minerals are generally grouped or classified based on their chemical composition. Minerals are generally grouped or classified based on their chemical composition


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Minerals are generally grouped or classified based on their chemical composition.

  • Minerals are generally grouped or classified based on their chemical composition.

  • Most common system is the Dana system.

  • Developed by Professor James Dana of Yale University in 1848.



Minerals are usually compounds made of the most common elements in the crust

  • Minerals are usually compounds made of the most common elements in the crust



The largest group of minerals

  • The largest group of minerals

  • Composed of:

    • Metal + SiO2
    • Example: topaz


The second largest group of minerals

  • The second largest group of minerals

  • Composed of:

    • Metal + CO3
    • Example: calcite


Composed of:

  • Composed of:

    • Metal + O
    • Example: magnetite


Composed of:

  • Composed of:

    • Metal + SO4
    • Example: barite


Composed of:

  • Composed of:

    • Metal + halogen
    • Halogens include:
      • Chlorine
      • Fluorine
      • Bromine
      • Iodine
      • Example: fluorite


Composed of:

  • Composed of:

    • Metal + S
    • Example: chalcocite


Composed of:

  • Composed of:

    • Metal + PO4
    • Example: Apatite


Composed of:

  • Composed of:

    • Metal + NO3
    • Example: Niter


Composed of:














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