Phosphate mineral

Short description: Nickel–Strunz 9 ed mineral class number 8 (isolated tetrahedral units, mainly)

Apatite

Phosphate minerals contain the tetrahedrally coordinated phosphate (PO43−) anion, sometimes with arsenate (AsO43−) and vanadate (VO43−) substitutions, along with chloride (Cl−), fluoride (F−), and hydroxide (OH−) anions, that also fit into the crystal structure.

The phosphate class of minerals is a large and diverse group, however, only a few species are relatively common.

## Contents

* 1 Applications
* 2 Examples
* 3 Nickel–Strunz classification -08- phosphates
* 3.1 Class: phosphates
* 4 References

## Applications

Thin section of apatite-rich carbonate in cross polarized transmitted light.

Phosphate rock has high concentration of phosphate minerals, most commonly from the apatite group of minerals. It is the major resource mined to produce phosphate fertilizers for the agricultural industry. Phosphate is also used in animal feed supplements, food preservatives, anti-corrosion agents, cosmetics, fungicides, ceramics, water treatment and metallurgy.

The production of fertilizer is the largest source responsible for minerals mined for their phosphate content.

Phosphate minerals are often used to control rust, and to prevent corrosion on ferrous materials applied with electrochemical conversion coatings.

## Examples

Phosphate minerals include:

* Triphylite Li(Fe,Mn)PO4
* Monazite (La, Y, Nd, Sm, Gd, Ce,Th)PO4, rare earth metals
* Hinsdalite PbAl3(PO4)(SO4)(OH)6
* Pyromorphite Pb5(PO4)3Cl
* Erythrite Co3(AsO4)2·8H2O
* Amblygonite LiAlPO4F
* Lazulite (Mg,Fe)Al2(PO4)2(OH)2
* Wavellite Al3(PO4)2(OH)3·5H2O
* Turquoise CuAl6(PO4)4(OH)8·5H2O
* Autunite Ca(UO2)2(PO4)2·10-12H2O
* Phosphophyllite Zn2(Fe,Mn)(PO4)2•4H2O
* Struvite (NH4)MgPO4·6H2O
* Xenotime-Y Y(PO4)
* Apatite group Ca5(PO4)3(F,Cl,OH)
* Hydroxylapatite Ca5(PO4)3OH
* Fluorapatite Ca5(PO4)3F
* Chlorapatite Ca5(PO4)3Cl
* Bromapatite
* Mitridatite group:
* Arseniosiderite-mitridatite series (Ca2(Fe3+)3[(O)2|(AsO4)3]·3H2O -- Ca2(Fe3+)3[(O)2|(PO4)3]·3H2O)[1]
* Arseniosiderite-robertsite series (Ca2(Fe3+)3[(O)2|(AsO4)3]·3H2O -- Ca3(Mn3+)4[(OH)3|(PO4)2]2·3H2O)[2]

## Nickel–Strunz classification -08- phosphates

IMA-CNMNC proposes a new hierarchical scheme (Mills et al., 2009). This list uses it to modify the classification of Nickel–Strunz (mindat.org, 10 ed, pending publication).

* Abbreviations:
* "*" – discredited (IMA/CNMNC status).
* "?" – questionable/doubtful (IMA/CNMNC status).
* "REE" – Rare-earth element (Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu)
* "PGE" – Platinum-group element (Ru, Rh, Pd, Os, Ir, Pt)
* 03.C Aluminofluorides, 06 Borates, 08 Vanadates (04.H V[5,6] Vanadates), 09 Silicates:
* Neso: insular (from Greek νησος nēsos, island)
* Soro: grouping (from Greek σωροῦ sōros, heap, mound (especially of corn))
* Cyclo: ring
* Ino: chain (from Greek ις [genitive: ινος inos], fibre)
* Phyllo: sheet (from Greek φύλλον phyllon, leaf)
* Tekto: three-dimensional framework
* Nickel–Strunz code scheme: NN.XY.##x
* NN: Nickel–Strunz mineral class number
* X: Nickel–Strunz mineral division letter
* Y: Nickel–Strunz mineral family letter
* ##x: Nickel–Strunz mineral/group number, x add-on letter

### Class: phosphates

* 08.A Phosphates, etc. without additional anions, without H2O
* 08.AA With small cations (some also with larger ones): 05 Berlinite, 05 Rodolicoite; 10 Beryllonite, 15 Hurlbutite, 20 Lithiophosphate, 25 Nalipoite, 30 Olympite
* 08.AB With medium-sized cations: 05 Farringtonite; 10 Ferrisicklerite, 10 Heterosite, 10 Natrophilite, 10 Lithiophilite, 10 Purpurite, 10 Sicklerite, 10 Simferite, 10 Triphylite; 15 Chopinite, 15 Sarcopside; 20 Beusite, 20 Graftonite
* 08.AC With medium-sized and large cations: 10 IMA2008-054, 10 Alluaudite, 10 Hagendorfite, 10 Ferroalluaudite, 10 Maghagendorfite, 10 Varulite, 10 Ferrohagendorfite*; 15 Bobfergusonite, 15 Ferrowyllieite, 15 Qingheiite, 15 Rosemaryite, 15 Wyllieite, 15 Ferrorosemaryite; 20 Maricite, 30 Brianite, 35 Vitusite-(Ce); 40 Olgite?, 40 Bario-olgite; 45 Ferromerrillite, 45 Bobdownsite, 45 Merrillite-(Ca)*, 45 Merrillite, 45 Merrillite-(Y)*, 45 Whitlockite, 45 Tuite, 45 Strontiowhitlockite; 50 Stornesite-(Y), 50 Xenophyllite, 50 Fillowite, 50 Chladniite, 50 Johnsomervilleite, 50 Galileiite; 55 Harrisonite, 60 Kosnarite, 65 Panethite, 70 Stanfieldite, 90 IMA2008-064
* 08.AD With only large cations: 05 Nahpoite, 10 Monetite, 15 Archerite, 15 Biphosphammite; 20 Phosphammite, 25 Buchwaldite; 35 Pretulite, 35 Xenotime-(Y), 35 Xenotime-(Yb); 45 Ximengite, 50 Monazite-(Ce), 50 Monazite-(La), 50 Monazite-(Nd), 50 Monazite-(Sm), 50 Brabantite?
* 08.B Phosphates, etc. with Additional Anions, without H2O
* 08.BA With small and medium-sized cations: 05 Vayrynenite; 10 Hydroxylherderite, 10 Herderite; 15 Babefphite
* 08.BB With only medium-sized cations, (OH, etc.):RO4 £1:1: 05 Amblygonite, 05 Natromontebrasite?, 05 Montebrasite?, 05 Tavorite; 10 Zwieselite, 10 Triplite, 10 Magniotriplite?, 10 Hydroxylwagnerite; 15 Joosteite, 15 Stanekite, 15 Triploidite, 15 Wolfeite, 15 Wagnerite; 20 Satterlyite, 20 Holtedahlite; 25 Althausite; 30 Libethenite, 30 Zincolibethenite; 35 Tarbuttite; 40 Barbosalite, 40 Hentschelite, 40 Scorzalite, 40 Lazulite; 45 Trolleite, 55 Phosphoellenbergerite; 90 Zinclipscombite, 90 Lipscombite, 90 Richellite
* 08.BC With only medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1: 10 Plimerite, 10 Frondelite, 10 Rockbridgeite
* 08.BD With only medium-sized cations, (OH, etc.):RO4 = 2:1: 05 Pseudomalachite, 05 Reichenbachite, 10 Gatehouseite, 25 Ludjibaite
* 08.BE With only medium-sized cations, (OH, etc.):RO4 > 2:1: 05 Augelite, 10 Grattarolaite, 15 Cornetite, 30 Raadeite, 85 Waterhouseite
* 08.BF With medium-sized and large cations, (OH, etc.):RO4 < 0.5:1: 05 Arrojadite, 05 Arrojadite-(BaFe), 05 Arrojadite-(KFe), 05 Arrojadite-(NaFe), 05 Arrojadite-(SrFe), 05 Arrojadite-(KNa), 05 Arrojadite-(PbFe), 05 Arrojadite-(BaNa), 05 Fluorarrojadite-(BaNa), 05 Fluorarrojadite-(KNa), 05 Fluorarrojadite-(BaFe), 05 Ferri-arrojadite-(BaNa), 05 Dickinsonite, 05 Dickinsonite-(KNa), 05 Dickinsonite-(KMnNa), 05 Dickinsonite-(KNaNa), 05 Dickinsonite-(NaNa); 10 Samuelsonite, 15 Griphite, 20 Nabiasite
* 08.BG With medium-sized and large cations, (OH, etc.):RO4 = 0.5:1: 05 Bearthite, 05 Goedkenite, 05 Tsumebite; 10 Melonjosephite, 15 Tancoite
* 08.BH With medium-sized and large cations, (OH,etc.):RO4 = 1:1: 05 Thadeuite; 10 Lacroixite, 10 Isokite, 10 Panasqueiraite; 15 Drugmanite; 20 Bjarebyite, 20 Kulanite, 20 Penikisite, 20 Perloffite, 20 Johntomaite; 25 Bertossaite, 25 Palermoite; 55 Jagowerite, 60 Attakolite
* 08.BK With medium-sized and large cations, (OH, etc.): 05 Brazilianite, 15 Curetonite, 25 Lulzacite
* 08.BL With medium-sized and large cations, (OH, etc.):RO4 = 3:1: 05 Corkite, 05 Hinsdalite, 05 Orpheite, 05 Woodhouseite, 05 Svanbergite; 10 Kintoreite, 10 Benauite, 10 Crandallite, 10 Goyazite, 10 Springcreekite, 10 Gorceixite; 10 Lusungite?, 10 Plumbogummite, 10 Ferrazite?; 13 Eylettersite, 13 Florencite-(Ce), 13 Florencite-(La), 13 Florencite-(Nd), 13 Waylandite, 13 Zairite; 15 Viitaniemiite, 20 Kuksite, 25 Pattersonite
* 08.BM With medium-sized and large cations, (OH, etc.):RO4 = 4:1: 10 Paulkellerite, 15 Brendelite
* 08.BN With only large cations, (OH, etc.):RO4 = 0.33:1: 05 IMA2008-068, 05 Phosphohedyphane, 05 IMA2008-009, 05 Alforsite, 05 Apatite*, 05 Apatite-(CaOH), 05 Apatite-(CaCl), 05 Apatite-(CaF), 05 Apatite-(SrOH), 05 Apatite-(CaOH)-M, Carbonate-fluorapatite?, 05 Carbonate-hydroxylapatite?, 05 Belovite-(Ce), 05 Belovite-(La), 05 Fluorcaphite, 05 Pyromorphite, 05 Hydroxylpyromorphite, 05 Deloneite-(Ce), 05 Kuannersuite-(Ce), 10 Arctite
* 08.BO With only large cations, (OH, etc.):RO4 1:1: 05 Nacaphite, 10 Petitjeanite, 15 Smrkovecite, 25 Heneuite, 30 Nefedovite, 40 Artsmithite
* 08.C Phosphates without Additional Anions, with H2O
* 08.CA With small and large/medium cations: 05 Fransoletite, 05 Parafransoletite; 10 Ehrleite, 15 Faheyite; 20 Gainesite, 20 Mccrillisite, 20 Selwynite; 25 Pahasapaite, 30 Hopeite, 40 Phosphophyllite; 45 Parascholzite, 45 Scholzite; 65 Gengenbachite, 70 Parahopeite
* 08.CB With only medium-sized cations, RO4:H2O = 1:1: 05 Serrabrancaite, 10 Hureaulite
* 08.CC With only medium-sized cations, RO4:H2O = 1:1.5: 05 Garyansellite, 05 Kryzhanovskite, 05 Landesite, 05 Phosphoferrite, 05 Reddingite
* 08.CD With only medium-sized cations, RO4:H2O = 1:2: 05 Kolbeckite, 05 Metavariscite, 05 Phosphosiderite; 10 Strengite, 10 Variscite; 20 Ludlamite
* 08.CE With only medium-sized cations, RO4:H2O £1:2.5: 10 Newberyite, 20 Phosphorrosslerite; 25 Metaswitzerite, 25 Switzerite; 35 Bobierrite; 40 Arupite, 40 Baricite, 40 Vivianite, 40 Pakhomovskyite; 50 Cattiite, 55 Koninckite; 75 IMA2008-046, 75 Malhmoodite; 80 Santabarbaraite, 85 Metavivianite
* 08.CF With large and medium-sized cations, RO4:H2O > 1:1: 05 Tassieite, 05 Wicksite, 05 Bederite; 10 Haigerachite
* 08.CG With large and medium-sized cations, RO4:H2O = 1:1: 05 Collinsite, 05 Cassidyite, 05 Fairfieldite, 05 Messelite, 05 Hillite, (05 Uranophane-beta but Uranophane 09.AK.15); 20 Phosphogartrellite
* 08.CH With large and medium-sized cations, RO4:H2O < 1:1: 10 Anapaite, 20 Dittmarite, 20 Niahite, 25 Francoanellite, 25 Taranakite, 30 Schertelite, 35 Hannayite, 40 Hazenite, 40 Struvite, 40 Struvite-(K), 45 Rimkorolgite, 50 Bakhchisaraitsevite, 55 IMA2008-048
* 08.CJ With only large cations: 05 Stercorite, 10 Mundrabillaite, 10 Swaknoite, 15 Nastrophite, 15 Nabaphite, 45 Brockite, 45 Grayite, 45 Rhabdophane-(Ce), 45 Rhabdophane-(La), 45 Rhabdophane-(Nd), 45 Tristramite, 50 Brushite, 50 Churchite-(Dy)*, 50 Churchite-(Nd), 50 Churchite-(Y), 50 Ardealite, 60 Dorfmanite, 70 Catalanoite, 80 Ningyoite
* 08.D Phosphates
* 08.DA With small (and occasionally larger) cations: 05 Moraesite, 10 Footemineite, 10 Ruifrancoite, 10 Guimaraesite, 10 Roscherite, 10 Zanazziite, 10 Atencioite, 10 Greifensteinite; 15 Uralolite, 20 Weinebeneite, 25 Tiptopite, 30 Veszelyite, 35 Kipushite, 40 Spencerite, 45 Glucine
* 08.DB With only medium-sized cations, (OH, etc.):RO4 < 1:1: 05 Diadochite, 10 Vashegyite, 15 Schoonerite, 20 Sinkankasite, 25 Mitryaevaite, 30 Sanjuanite, 50 Giniite, 55 Sasaite, 60 Mcauslanite, 65 Goldquarryite, 70 Birchite
* 08.DC With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1: 05 Nissonite; 15 Kunatite, 15 Earlshannonite, 15 Whitmoreite; 17 Kleemanite, 20 Bermanite, 207? Oxiberaunite*, 22 Kovdorskite; 25 Ferrostrunzite, 25 Ferristrunzite, 25 Metavauxite, 25 Strunzite; 27 Beraunite; 30 Gordonite, 30 Laueite, 30 Sigloite, 30 Paravauxite, 30 Ushkovite, 30 Ferrolaueite, 30 Mangangordonite, 30 Pseudolaueite, 30 Stewartite, 30 Kastningite, 35 Vauxite, 37 Vantasselite, 40 Cacoxenite; 45 Gormanite, 45 Souzalite; 47 Kingite; 50 Wavellite, 50 Allanpringite, 52 Kribergite, 60 Nevadaite
* 08.DD With only medium-sized cations, (OH, etc.):RO4 = 2:1: 15 Aheylite, 15 Chalcosiderite, 15 Faustite, 15 Planerite, 15 Turquoise; 20 Ernstite, 20 Childrenite, 20 Eosphorite
* 08.DE With only medium-sized cations, (OH, etc.):RO4 = 3:1: 05 Senegalite, 10 Fluellite, 20 Zapatalite, (35 Alumoakermanite, Mindat.org: 09.BB.10), 35 Aldermanite
* 08.DF With only medium-sized cations, (OH,etc.):RO4 > 3:1: 05 Hotsonite-VII, 05 Hotsonite-VI; 10 Bolivarite, 10 Evansite, 10 Rosieresite, 25 Sieleckiite, 40 Gladiusite
* 08.DG With large and medium-sized cations, (OH, etc.):RO4 < 0.5:1: 05 Sampleite
* 08.DH With large and medium-sized cations, (OH, etc.):RO4 < 1:1: 05 Minyulite; 10 Leucophosphite, 10 Spheniscidite, 10 Tinsleyite; 15 Kaluginite*, 15 Keckite, 15 Jahnsite-(CaMnFe), 15 Jahnsite-(CaMnMg), 15 Jahnsite-(CaMnMn), 15 Jahnsite-(MnMnMn)*, 15 Jahnsite-(CaFeFe), 15 Jahnsite-(NaFeMg), 15 Jahnsite-(CaMgMg), 15 Jahnsite-(NaMnMg), 15 Rittmannite, 15 Whiteite-(MnFeMg), 15 Whiteite-(CaFeMg), 15 Whiteite-(CaMnMg); 20 Manganosegelerite, 20 Overite, 20 Segelerite, 20 Wilhelmvierlingite, 20 Juonniite; 25 Calcioferrite, 25 Kingsmountite, 25 Montgomeryite, 25 Zodacite; 30 Lunokite, 30 Pararobertsite, 30 Robertsite, 30 Mitridatite; 35 Matveevite?, 35 Mantienneite, 35 Paulkerrite, 35 Benyacarite, 40 Xanthoxenite, 55 Englishite
* 08.DJ With large and medium-sized cations, (OH, etc.):RO4 = 1:l: 05 Johnwalkite, 05 Olmsteadite, 10 Gatumbaite, 20 Meurigite-Na, 20 Meurigite-K, 20 Phosphofibrite, 25 Jungite, 30 Wycheproofite, 35 Ercitite, 40 Mrazekite
* 08.DK With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1: 15 Matioliite, 15 IMA2008-056, 15 Dufrenite, 15 Burangaite, 15 Natrodufrenite; 20 Kidwellite, 25 Bleasdaleite, 30 Matulaite, 35 Krasnovite
* 08.DL With large and medium-sized cations, (OH, etc.):RO4 = 2:1: 05 Foggite; 10 Cyrilovite, 10 Millisite, 10 Wardite; 15 Petersite-(Y), 15 Calciopetersite; 25 Angastonite
* 08.DM With large and medium-sized cations, (OH, etc.):RO4 > 2:1: 05 Morinite, 15 Melkovite, 25 Gutsevichite?, 35 Delvauxite
* 08.DN With only large cations: 05 Natrophosphate, 10 Isoclasite, 15 Lermontovite, 20 Vyacheslavite
* 08.DO With CO3, SO4, SiO4: 05 Girvasite, 10 Voggite, 15 Peisleyite, 20 Perhamite, 25 Saryarkite-(Y), 30 Micheelsenite, 40 Parwanite, 45 Skorpionite
* 08.E Uranyl Phosphates
* 08.EA UO2:RO4 = 1:2: 05 Phosphowalpurgite, 10 Parsonsite, 15 Ulrichite, 20 Lakebogaite
* 08.EB UO2:RO4 = 1:1: 05 Autunite, 05 Uranocircite, 05 Torbernite, 05 Xiangjiangite, 05 Saleeite; 10 Bassetite, 10 Meta-autunite, 10 Metauranocircite, 10 Metatorbernite, 10 Lehnerite, 10 Przhevalskite; 15 Chernikovite, 15 Meta-ankoleite, 15 Uramphite; 20 Threadgoldite, 25 Uranospathite, 30 Vochtenite, 35 Coconinoite, 40 Ranunculite, 45 Triangulite, 50 Furongite, 55 Sabugalite
* 08.EC UO2:RO4 = 3:2: 05 Francoisite-(Ce), 05 Francoisite-(Nd), 05 Phuralumite, 05 Upalite; 10 Kivuite?, 10 Yingjiangite, 10 Renardite, 10 Dewindtite, 10 Phosphuranylite; 15 Dumontite; 20 Metavanmeersscheite, 20 Vanmeersscheite; 25 Althupite, 30 Mundite, 35 Phurcalite, 40 Bergenite
* 08.ED Unclassified: 05 Moreauite, 10 Sreinite, 15 Kamitugaite
* 08.F Polyphosphates
* 08.FA Polyphosphates, without OH and H2O; dimers of corner-sharing RO4 tetrahedra: 20 Pyrocoproite*, 20 Pyrophosphite*
* 08.FC Polyphosphates, with H2O only: 10 Canaphite, 20 Arnhemite*, 25 Wooldridgeite, 30 Kanonerovite
* 08.X Unclassified Strunz Phosphates
* 08.XX Unknown: 00 Sodium-autunite, 00 Pseudo-autunite*, 00 Cheralite-(Ce)?, 00 Laubmannite?, 00 Spodiosite?, 00 Sodium meta-autunite, 00 Kerstenite?, 00 Lewisite, 00 Coeruleolactite, 00 Viseite, 00 IMA2009-005

## References

1. ↑ "Arseniosiderite-Mitridatite Series". http://www.mindat.org/min-10962.html.
2. ↑ "Arseniosiderite-Robertsite Series". http://www.mindat.org/min-10963.html.

* Hurlbut, Cornelius S.; Klein, Cornelis, 1985, Manual of Mineralogy, 20th ed., John Wiley and Sons, New York ISBN 0-471-80580-7
* Stuart J. Mills; Frédéric Hatert; Ernest H. Nickel; Giovanni Ferraris (2009). "The standardisation of mineral group hierarchies: application to recent nomenclature proposals". Eur. J. Mineral. 21 (5): 1073–1080. doi:10.1127/0935-1221/2009/0021-1994. Bibcode: 2009EJMin..21.1073M. http://pubsites.uws.edu.au/ima-cnmnc/Mills et al 2009 Groups EJM October.pdf.
* "IMA/CNMNC List of Mineral Name". IMA-CNMNC. March 2009. http://pubsites.uws.edu.au/ima-cnmnc/IMA2009-01 UPDATE 160309.pdf.
* Ferraiolo, Jim. "Minerals Arranged by Nickel-Strunz (Version 10) Classification". Mineralogy Database. http://webmineral.com/strunz/strunz.php.
* Webmineral - Dana
* \- Australian Mineral Atlas

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Phosphate minerals

Crystalline|

* Beraunite
* Brazilianite
* Eosphorite
* Fluorapatite
* Hydroxyapatite
* Lithiophilite
* Metatorbernite
* Monazite
* Struvite
* Taranakite
* Variscite
* Wavellite
* Xenotime

Cryptocrystalline|

* Turquoise
* Whitlockite

Amorphous|

* Santabarbaraite
* Scorodite
* Cobalt phosphate

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white;">IMA–CNMNC / Nickel–Strunz IDs
Mineral categories (classes, subclasses, divisions)

"Special cases"
("native elements and organic minerals")|

* "Native elements" (IDs 1)
* Organic minerals (IDs 10)

"Sulfides and oxides"|

* Sulfides (IDs 2.A–F)
* Sulfosalts; sulfarsenites, sulfantimonites, sulfbismuthites (IDs 2.G)

* Sulfosalts; sulfarsenates, sulfantimonates (IDs 2.K)
* Other sulfosalts (IDs 2.H–J and 2.L–M)

* Oxides (IDs 4.A–E, e.g. pyrochlore supergroup and corundum group)

* Hydroxides (IDs 4.F–G)
* "Arsenites", "sulfites" and iodates (IDs 4.J–K)

* Tellurium oxysalts
* Vanadium oxides (IDs 4.H)

"Evaporites and similars"|

* Carbonates (IDs 5.A–E)
* Nitrates (IDs 5.N)
* Borates (IDs 6)
* Halides (IDs 3)

"Mineral structures with tetrahedral units"
(sulfate anion, phosphate anion,
silicon, etc.)|

* Monomeric minerals (similar to nesosilicates)

* Sulfates (IDs 7.A–E)
* Thiosulphates (IDs 7.J)

* Chromates (IDs 7.F)
* Molybdates, wolframates, niobates (IDs 7.G–H)

* Phosphates (IDs 8)
* Arsenates, vanadates (IDs 8)

* Monomeric, isolated silicates (IDs 9.A)
* Germanates (IDs 9.J)

* Silicate frameworks, tectosilicates

* Zeolite frameworks, zeolite family (IDs 9.G)

* Other zeolitic frameworks: nephelines (IDs 9.FA.05)
* Cancrinite-sodalite groups (IDs 9.FB.)

* Other tectosilicates (IDs 9.FA. and 9.FB.15, e.g. feldspars)

* Other silicate frameworks

* Cyclosilicates (IDs 9.C)
* Phyllosilicates (IDs 9.E, e.g. clays)
* Silica family (IDs 4.DA.)

* Inosilicates

* Single chain inosilicates (IDs 9.D, e.g. pyroxenes)

* Ribbon or multiple chain inosilicates (IDs 9.D, e.g. amphiboles)

* Other non monomeric minerals

* Unclassified silicates (IDs 9.H)

* Sorosilicates (IDs 9.B, e.g. epidote and seidozerite supergroups)

* Polymeric, isolated silicates (IDs 9.A, e.g. olivine and gadolinite supergroups)

* Other inorganic polymers (e.g. polyoxometalates; "polyphosphates", IDs 8.F)

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