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Liz LaRosa 5 th grade science www.middleschoolscience.com 2010. Groups of Minerals. Mineral Groups - Notes. As you view the slides, write your notes into the graphic organizers. Include all the information from each slide into the appropriate boxes. Write neatly and carefully.

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Liz larosa 5 th grade science www middleschoolscience com 2010

Liz LaRosa 5th grade science www.middleschoolscience.com 2010

Groups of Minerals


Mineral groups notes
Mineral Groups - Notes

  • As you view the slides, write your notes into the graphic organizers.

  • Include all the information from each slide into the appropriate boxes. Write neatly and carefully.

  • You will not be expected to memorize this information, but this information will be used as a reference throughout our mineral unit and help you become familiar with the different types of minerals that exist.


Mineral groups
Mineral Groups

  • Minerals are divided into groups based on their chemical composition

  • The two main groups all minerals can be classified into are:

    • Silicates

    • Nonsilicates


Silicates
Silicates

  • Made of Silicon (Si) and Oxygen (O)

    • Example: SiO4

  • Make up 90% of the Earth’s crust

  • Combine with elements such as Aluminum (Al), Iron (Fe), Magnesium (Mg), and Potassium (K)


  • Silicates groups
    Silicates - Groups

    • Nesosilicates

      • Willemite – Zn2(SiO4)

        • found in Franklin, NJ

      • Garnet - A3B2(SiO4)3


    Silicates groups1
    Silicates - Groups

    • Sorosilicates

      • Hemimorphite

        • Zn4(SiO4)


    Silicates groups2
    Silicates - Groups

    • Cyclosilicates

      • Beryl

        • Be3Al2(Si6O18)


    Silicates groups3
    Silicates - Groups

    • Inosilicates

      • Hornblende

        • (Ca,Na)2(Mg,Fe,Al)5(Al,Si)8O22 (OH)2


    Silicates groups4
    Silicates - Groups

    • Phyllosilicates

      • Talc

        • Mg3(Si4O10)(OH)2


    Silicates groups5
    Silicates - Groups

    • Tectosilicates

      • Quartz

        • SiO2

      • Opal

        • SiO2.nH2O


    Nonsilicates
    Nonsilicates

    • Do not contain a combination of Silicon (Si) and Oxygen (O) in their chemical composition

    • There are 6 groups of nonsilicates:

      • Native Elements

      • Oxides

      • Carbonates

      • Sulfates

      • Halides

      • Sulfides


    Native elements
    Native Elements

    • Minerals composed of only one element

    • Examples are:

      • Gold (Au)

      • Copper (Cu)

      • Silver (Ag)*


    Oxides
    Oxides

    • Elements combine with Oxygen (O)

    • Some elements that bond with O are Aluminum (Al) and Iron (Fe)

    • Examples of oxides:

      • Chromite - FeCr2O4

      • Hematite* - Fe2O3


    Carbonates
    Carbonates

    • Contain Carbon (C) and Oxygen (O) in their formulas

    • Examples:

      • Calcite - CaCO3

      • Malachite* - Cu2CO3(OH)2


    Sulfates
    Sulfates

    • Contain Sulfur and Oxygen (SO4)

    • Examples:

      • Gypsum - CaSO4.2H2O

      • Barite - BaSO4

      • Celestite* - SrSO4


    Halides
    Halides

    • Compounds formed when Fluorine (F), Chlorine (Cl), Iodine (I), or Bromine (Br) bond with Sodium (Na), Potassium (K), or Calcium (Ca)

    • Examples:

      • Halite - NaCl

      • Fluorite - CaF2


    Sulfides
    Sulfides

    • Elements bonded with Sulfur (S) such as Lead (Pb), Iron (Fe), or Nickel (Ni)

    • Examples:

      • Galena - PbS

      • Pyrite - FeS2


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