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    Silicate Minerals

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    deboline mitra
    The document summarizes the classification of silicate minerals, which make up approximately 90% of the Earth's crust. Silicate minerals are classified based on the structure of their silicate groups and all contain silicon and oxygen. The main classes of silicates are nesosilicates, sorosilicates, cyclosilicates, inosilicates, phyllosilicates, tectosilicates. Examples are given for common minerals in each class.

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    Silicate Minerals

    Uploaded by

    deboline mitra
    31 views8 pages
    The document summarizes the classification of silicate minerals, which make up approximately 90% of the Earth's crust. Silicate minerals are classified based on the structure of their silicate groups and all contain silicon and oxygen. The main classes of silicates are nesosilicates, sorosilicates, cyclosilicates, inosilicates, phyllosilicates, tectosilicates. Examples are given for common minerals in each class.

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    Silicate minerals

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    Silicate minerals

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    The document summarizes the classification of silicate minerals, which make up approximately 90% of the Earth's crust. Silicate minerals are classified based on the structure of their silicate groups and all contain silicon and oxygen. The main classes of silicates are nesosilicates, sorosilicates, cyclosilicates, inosilicates, phyllosilicates, tectosilicates. Examples are given for common minerals in each class.

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    © All Rights Reserved
    Download as RTF, PDF, TXT or read online from Scribd
    Download as rtf, pdf, or txt
    31 views8 pages

    Silicate Minerals

    Uploaded by

    deboline mitra
    The document summarizes the classification of silicate minerals, which make up approximately 90% of the Earth's crust. Silicate minerals are classified based on the structure of their silicate groups and all contain silicon and oxygen. The main classes of silicates are nesosilicates, sorosilicates, cyclosilicates, inosilicates, phyllosilicates, tectosilicates. Examples are given for common minerals in each class.

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    © All Rights Reserved
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    of 8

    The silicate minerals make up the largest and most important class of rock-forming minerals,

    comprising approximately 90 percent of the crust of the Earth. They are classified based on the
    structure of their silicate group. Silicate minerals all contain silicon and oxygen.

    Contents
    [hide]

    · 1 Nesosilicates or isosilicates

    · 2 Sorosilicates

    · 3 Cyclosilicates

    · 4 Inosilicates

    · 4.1 Single chain inosilicates

    · 4.2 Double chain inosilicates

    · 5 Phyllosilicates

    · 6 Tectosilicates

    · 7 References

    · 8 External links

    [edit] Nesosilicates or isosilicates


    Nesosilicates, or orthosilicates, have isolated [SiO4]4− tetrahedra that are connected only by
    interstitial cations.

    · Phenacite group

    · Phenacite - Be2SiO4

    · Willemite - Zn2SiO4

    · Olivine group

    · Forsterite - Mg2SiO4

    · Fayalite - Fe2SiO4

    · Garnet group

    · Pyrope - Mg3Al2(SiO4)3
    · Almandine - Fe3Al2(SiO4)3

    · Spessartine - Mn3Al2(SiO4)3

    · Grossular - Ca3Al2(SiO4)3

    · Andradite - Ca3Fe2(SiO4)3

    · Uvarovite - Ca3Cr2(SiO4)3

    · Hydrogrossular - Ca3Al2Si2O8(SiO4)1-m(OH)4m

    · Zircon group

    · Zircon - ZrSiO4

    · Thorite - (Th,U)2SiO4
    Lunar Ferroan Anorthosite #60025 (Plagioclase Feldspar). Collected by Apollo 16 from the
    Lunar Highlands near Descartes Crater.

    · Quartz group

    · Quartz - SiO2

    · Tridymite - SiO2

    · Cristobalite - SiO2

    · Feldspar group

    · Alkali-feldspars

    · Potassium-feldspars
    · Microcline - KAlSi3O8

    · Orthoclase - KAlSi3O8

    · Sanidine - KAlSi3O8

    · Anorthoclase - (Na,K)AlSi3O8

    · Albite - NaAlSi3O8

    · Plagioclase feldspars

    · Albite - NaAlSi3O8

    · Oligoclase - (Na,Ca)(Si,Al)4O8 (Na:Ca 4:1)

    · Andesine - (Na,Ca)(Si,Al)4O8 (Na:Ca 3:2)

    · Labradorite - (Na,Ca)(Si,Al)4O8 (Na:Ca 2:3)

    · Bytownite - (Na,Ca)(Si,Al)4O8 (Na:Ca 1:4)

    · Anorthite - CaAl2Si2O8

    · Feldspathoid group

    · Nosean - Na8Al6Si6O24(SO4)

    · Cancrinite - Na6Ca2(CO3,Al6Si6O24).2H2O

    · Leucite - KAlSi2O6

    · Nepheline - (Na,K)AlSiO4

    · Sodalite - Na8(AlSiO4)6Cl2

    · Hauyne - (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

    · Lazurite - (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2

    · Petalite - LiAlSi4O10

    · Scapolite group

    · Marialite - Na4(AlSi3O8)3(Cl2,CO3,SO4)

    · Meionite - Ca4(Al2Si2O8)3(Cl2CO3,SO4)

    · Analcime - NaAlSi2O6•H2O

    · Zeolite group
    · Natrolite - Na2Al2Si3O10•2H2O

    · Chabazite - CaAl2Si4O12•6H2O

    · Heulandite - CaAl2Si7O18•6H2O

    · Stilbite - NaCa2Al5Si13O36•17H2O

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