Bound water, Water of crystallization

H₂O

Water in hydrated minerals are classified as follows;

Coordinated water: Water acts as ligands in complex ion
Anion water: Water combined with anion by hydrogen bond
Lattice water: Water occupies a space in crystal lattice. Different from zeolitic water.
Zeolitic water: A kind of lattice water. Crystal lattice is not changed by dehydration.
Structured water: Water of hydroxide minerals that is easily dehydrated by heating.
Opal water: Water absorbed in interstitial space of fine grains.
Oxonium ion: Water act as cation, H₃O⁺

For example, Alum-(K), Carnallite, Hexahydrite, Tamarugite includes coordinated water only, Chalcanthite, Jôkokuite(Jokokuite) and Siderotil includes 4 coordinated water and 1 anion water, Epsomite includes 6 coordinated water and 1 anion water, Alunogen, Halotrichite and Pickeringite includes 6 coordinated water for 2 Al ions respectively and 5 anion water, and Brucite includes structured water.

Minerals including coordinated water, anion water, and/or lattice water are summarized below:

Sulfosalt

Gerstleyite Na2(Sb, As)8S13,2H2O

[AlF6]

[A(+)][B(2+)][AlF6],H2O [Cubic Fd3m]: Ralstonite

Chloride

[A][B][Cl3],6H2O [Orthorhombic Pcna]: Carnallite (6 coordinated water to Mg)
[A2][FeCl5(H2O)] [Orthorhomibc Pmnb]: Kremersite

Hydroxide-Chloride

[A21][B20][(OH)40|Cl42],6H2O [Tetragonal I4/mmm]: Cumengeite

Oxide

[A][O2],nH2O [Tetragonal]: Vernadite
[A][O2],nH2O [Amorphous]: Opal
[A][O3],H2O [Orthorhombic Pmnb,Pbna]: Tungstite; Metaschoepite
[A][O3],2H2O [Monoclinic P2/m]: Hydrotungstite
[A2][O6],H2O [Cubic Fd3m]: Hydrokenoelsmoreite
[A][B7][O14],3H2O [Monoclinic C2/m]: Birnessite
[A(2+)][B(4+)3][O7],3H2O [Trigonal R(-3)]: Aurorite; Chalcophanite
[A][B4][O9],3H2O [Hexagonal ???]: Ranciéite, Rancieite
[A][B5][O10],3.5H2O [Tetragonal ???]: Woodruffite
[A][B6][O12],3H2O [Monoclinic P2/m]: Todorokite
[A][B8][O16],nH2O [Tetragonal I4/m]: Manjiroite
[A4][B14][O27],21H2O [???]: Buserite

Hydroxide-Oxide

[(UO2)8][(OH)12|O2],12H2O [Orthorhombic P2ca]: Schoepite
[A(2+)][(UO2)6][(OH)6|O4],8H2O [Orthorhombic Pna21]: Becquerelite

Nesoborate

[A(2+)][H4BO4]2,2H2O [Monoclinic P2/a]: Hexahydroborite

Soroborate

[A(2+)][H6B2O7],2H2O [Triclinic P(-1)]: Pentahydroborite
[A(2+)][H3B3O7],H2O [Monoclinic P2/a]: Colemanite
[A(+)2][H4B4O9],8H2O [Monoclinic A2/a]: Borax (8 coordinated water)

Hydroxide-Soroborate

[A(2+)][OH|H4B3O7],4H2O [Monoclinic P21/a]: Inyoite

Cycloborate

[A(2+)3][H2BO3]6,2H2O [Monoclinic C2/c]: Nifontovite
[A(+)][C(2+)][H6B5O12],5H2O [Triclinic P(-1)]: Ulexite

Inoborate

[A(+)2][(HB2O4)2],3H2O [Monoclinic P2/c]: Kernite

Hydroxide-Inoborate

[A(2+)2][H5B5O12],H2O [Monoclinic P2/c]: Priceite

Carbonate

[A(+)2][CO3],H2O [Trigonal P312]: Monohydrocalcite
[A(+)2][CO3],3H2O [Monoclinic P2/n]: Nesquehonite
[A(+)2][CO3],6H2O [Monoclinic C2/c]: Ikaite
[A(+)2][CO3],10H2O [Monoclinic Cc]: Natron
[A(+)3][H(+)][CO3]2,2H2O [Monoclinic I2/a]: Trona
[A(+)2][B(2+)][CO3]2,5H2O [Monoclinic I2/a]: Gaylussite
[A(2+)2][CO3]3,2-3H2O [Orthorhombic Pb21m]: Tengerite-(Y)
[A(2+)2][CO3]3,4H2O [Orthorhombic P2221]: Calkinsite-(Ce)
[A(2+)2][CO3]3,8H2O [Orthorhombic Pbnb]: Lanthanite-(La); Lanthanite-(Nd)
[A(+)2][B(2+)][C(2+)][CO3]3,6H2O [Trigonal R(-3)]: Andersonite
[A(2+)2][B(2+)][CO3]3,11H2O [Orthorhombic Bba2]: Liebigite
[A(2+)][B(2+)2][CO3]4,6H2O [Orthorhombic Imm2]: Kimuraite-(Y)
[A(2+)][B4][CO3]7,9H2O [Orthorhombic Pb2m]: Lokkaite-(Y)
[A(2+)][B(3+)6][CO3]11,14H2O [Orthorhombic ???]: Hizenite-(Y)

Hydroxide-Carbonate

[A(2+)2][(OH)2|CO3],3H2O [Monoclinic C2]: Artinite
[A(2+)3][(OH)4|CO3],4H2O [Cubic ???]: Zaratite
[A(2+)][B(3+)][OH|(CO3)2],H2O [Tetragonal P422]: Kamphaugite-(Y)
[A(2+)][B(3+)][OH|(CO3)2],H2O [Orthorhombic Pmmm]: Calcioancylite-(Ce); Calcioancylite-(La)
[A(2+)][B(3+)][OH|(CO3)2],H2O [Monoclinic Pm]: Calcioancylite-(Nd)
[A(2+)][B(3+)2][(OH)4|(CO3)2],3H2O [Triclinic P(-1)]: Alumohydrocalcite
[A(2+)4][B(3+)2][(OH)12|CO3],2H2O [Orthorhombic ???]: Carbonatecyanotrichite
[A(2+)4][B(3+)2][(OH)12|CO3],3H2O [Hexagonal, Trigonal, Monoclinic]: Quintinite
[A(+)6][B(3+)][(OH)13|CO3],4H2O [Hexagonal P6/mmc]: Brugnatellite
[A(+)6][B(3+)2][(OH)16|CO3],4H2O [Trigonal R3m,R(-3)m] Sjögrenite(Sjogrenite) group: Desautelsite; Hydrotalcite; Reevesite; Pyroaurite; Stichtite
[A(2+)10][B(3+)2][(OH)24|CO3],2H2O [Trigonal R(-3)c]: Coalingite
[A(2+)5][(OH)2|(CO3)4],4H2O [Monoclinic P2/c]: Hydromagnesite
[A(2+)5][(OH)2|CO3],5H2O [Monoclinic ???]: Dypingite
[A(3+)5][(OH)13|CO3],5H2O [Triclinic P1]: Scarbroite

Hydroxide-Nesoborate-Carbonate

[A(2+)3][C(3+)][(OH)6|H4BO4|CO3] [Hexagonal ???]: Imayoshiite

Oxalate

[A(2+)][C2O4],H2O []: Whewellite
[A(2+)][C2O4],2H2O [Tetragonal, I4/m]: Weddellite
[A(2+)][C2O4],2H2O [Monoclinic, C/2c]: Lindbergite

Selenite

[A(2+)][SeO3],2H2O [Orthorhombic P222]: Chalcomenite

Tellurite

[A(2+)][TeO3],2H2O [Orthorhombic P222]: Teineite
[A(3+)2][(TeO3)3],H2O [Triclinic P(-1)]: Emmonsite
[A(+)][B(2+)][C(3+)][(TeO3)3],4.5H2O [Hexagonal P6/m] Zemannite group: Kinichilite; Zemannite

Hydroxide-Tellurite

[A(3+)][OH|TeO3],H2O [Monoclinic P2/c]: Sonoraite

Sulfate

[A(2+)][SO4],0.5H2O [Monoclinic I2]: Bassanite
[A(2+)][SO4],H2O [Monoclinic A2/a]: Szmikite; Szomolnokite
[A(2+)][SO4],2H2O [Monoclinic A2/a]: Gypsum
[A(2+)][SO4],4H2O [Monoclinic P2/n] Rozenite group: Boyleite; Ilesite; Rozenite; Starkeyite
[A(2+)][SO4],5H2O [Triclinic P(-1)] Chalcanthite group: Chalcanthite (4 coordinated water and 1 anion water); Jôkokuite, Jokokuite (4 coordinated water and 1 anion water); Siderotil (4 coordinated water and 1 anion water)
[A(2+)][SO4],6H2O [Tetragonal P422]: Retgersite
[A(2+)][SO4],6H2O [Monoclinic C2/c,A2/a] Hexahydrite group: Bianchite (6 coordinated water); Ferrohexahydrite (6 coordinated water); Hexahydrite (6 coordinated water); Moorhouseite (6 coordinated water); Nickelhexahydrite (6 coordinated water)
[A(2+)][SO4],7H2O [Orthorhombic P222] Epsomite group: Epsomite (6 coordinated water and 1 anion water); Goslarite (6 coordinated water and 1 anion water); Morenosite (6 coordinated water and 1 anion water)
[A(2+)][SO4],7H2O [Monoclinic P2/c] Melanterite group: Bieberite (6 coordinated water and 1 anion water); Boothite (6 coordinated water and 1 anion water); Mallardite (6 coordinated water and 1 anion water); Melanterite (6 coordinated water and 1 anion water); Zincmelanterite (6 coordinated water and 1 anion water)
[A(+)2][SO4],10H2O [Monoclinic P2/a]: Mirabilite
[A(+)][B(3+)][SO4]2,6H2O [Monoclinic P2/a]: Tamarugite (6 coordinated water)
[A(+)2][B(2+)][SO4]2,H2O [Monoclinic P21/m]: Syngenite
[A(+)2][B(2+)][SO4]2,4H2O [Monoclinic P21/a]: Blödite, Blodite
[A(+)2][B(2+)][SO4]2,6H2O [Monoclinic P21/b]: Boussingaultite
[A(+)][B(3+)][SO4]2,11H2O [Monoclinic C2/c]: Mendozite
[A(+)][B(3+)][SO4]2,12H2O [Cubic Pa3]: Alum-(K) (All coordinated water); Alum-(Na) (All coordinated water); Tschermigite
[A(+)][B(3+)][SO4]2,4H2O [Orthorhombic Pnma]: Rhomboclase (2 coordinate water and 2 anion water)
[A(+)4][B(2+)][SO4]3,2H2O [Monoclinic ???]: Eugsterite
[A(+)10][B(2+)3][SO4]8,6H2O [Monoclinic ???]: Hydroglauberite
[A(+)12][B(2+)7][SO4]13,15H2O [Trigonal R(-3)]: Löweite
[A(3+)2][SO4]3,7H2O [Monoclinic P2/c]: Kornelite
[A(3+)2][SO4]3,9H2O [Trigonal P(-3)c]: Coquimbite
[A(3+)2][SO4]3,9H2O [Trigonal P(-3)]: Paracoquimbite
[A(3+)2][SO4]3,11H2O [Triclinic P(-1)]: Quenstedtite
[A(3+)2][SO4]3,17H2O [Triclinic P(-1)]: Alunogen (12 coordinated water and 5 anion water)
[A(2+)][B(3+)2][SO4]4,14H2O [Triclinic P(-1)]: Römerite, Romerite
[A(2+)][B(3+)2][SO4]4,22H2O [Monoclinic P2] Halotrichite group: Halotrichite (5 coordinated water for an Fe ion, 6 coordinated water for 2 Al ions respectively and 5 anion water); Pickeringite (5 coordinated water for an Mg ion, 6 coordinated water for 2 Al ions respectively and 5 anion water)
[A(+)2][B(2+)5][C(3+)3][D][SO4]12,18H2O [Cubic Fd3c]: Voltaite

Hydroxide-Nesoborate-Sulfate

[A(2+)6][C2][(OH)12|H4BO4|(SO4)2],26H2O [Trigonal P3c]: Charlesite

Hydroxide-Sulfate

[A(3+)][OH|SO4],5H2O [Trigonal R(-3)]: Fibroferrite
[A(3+)][OH|SO4],5H2O [Monoclinic P21n]: Jurbanite
[A(3+)2][(OH)4|SO4],7H2O [Monoclinic P2/c]: Aluminite
[A(2+)4][(OH)6|SO4],H2O [Monoclinic C2/c]: Posnjakite
[A(2+)4][(OH)6|SO4],2H2O [Monoclinic Pc]: Langite; Wroewolfeite
[A(2+)4][(OH)6|SO4],4H2O [Trigonal P(-3)]: Namuwite
[A(2+)4][(OH)6|SO4],5H2O [Triclinic P(-1)]: Osakaite
[A(2+)]6[(OH)10|SO4],12H2O [Triclinic P(-1)]: Uranopilite
[A(3+)4][(OH)10|SO4],4H2O [Hexagonal ???]: Felsőbányaite, Felsobanyaite
[A(2+)][B(3+)2][(OH)12|SO4],3H2O [Monoclinic P2]: Chalcoalumite
[A(2+)4][B(3+)2][(OH)12|SO4],2-4H2O [Hexagonal ???]: Woodwardite
[A(2+)4][B(3+)2][(OH)12|SO4],2-4H2O [Orthorhombic ???]: Cyanotrichite
[A(2+)6][B(3+)2][(OH)16|SO4],7H2O [Hexagonal ???]: Hydrohonessite
[A(+)2][B(3+)][OH|(SO4)2],3H2O [Orthorhombic Pbnm]: Sideronatrite
[A(2+)][B(3+)][OH|(SO4)2],7H2O [Monoclinic P2/n]: Botryogen
[A(2+)][B(+)4][(OH)2|(SO4)2],2H2O [Monoclinic P2/m]: Peretaite
[A(2+)][B(2+)2][(OH)2|(SO4)2],8H2O [Triclinic P(-1)]: Johannite
[A(2+)][B(2+)4][(OH)6|(SO4)2],3H2O [Monoclinic P2/c]: Devilline; Lautenthalite; Serpierite
[A(2+)][B(2+)4][(OH)6|(SO4)2],6H2O [Monoclinic P2/c]: Asagiite; Ktenasite; Gobelinite
[A(2+)7][(OH)10|(SO4)2],3H2O [Hexagonal ???]: Schulenbergite
[A(2+)7][(OH)10|(SO4)2],8H2O [Hexagonal? ]: Minohlite
[A(2+)5][B(3+)4][(OH)18|(SO4)2],nH2O [Trigonal R(-3)m]: Hydrowoodwardite
[A(+)][B(2+)6][C(3+)3][(OH)18|(SO4)2],12H2O [Trigonal R(-3)]: Shigaite (6 coordinated water and 6 anion water)
[A(2+)15][(OH)26|(SO4)2],8H2O [Monoclinic P21/m]: Mooreite
[A(+)4][B(2+)]6[(OH)10|(SO4)3],4H2O [Monoclinic C2/m]: Zippeite
[A(2+)6][B(3+)2][(OH)12|(SO4)3],26H2O [Hexagonal P6/mmc]: Ettringite
[A(2+)15][(OH)22|(SO4)4],6H2O [Monoclinic P2/a]: Ramsbeckite
[A(2+)][B(3+)4][(OH)2|(SO4)6],20H2O [Triclinic P(-1)] Copiapite group: Copiapite (6 coordinated water, 2 coordinated water and 12 anion water); Magnesiocopiapite (6 coordinated water, 2 coordinated water and 12 anion water); Ferricopiapite

Hydrate-Hydroxide-Fluoride-Sulfate

[A(2+)3][B(3+)2][(OH)2|F8|SO4],2H2O [Monoclinic B2/b]: Creedite

Hydroxide-Chloride-Sulfate

[A(2+)6][B][(OH)12|Cl|SO4],3H2O [Trigonal P3c]: Spangolite
[A36][SO4|(OH)62|Cl8],6H2O [Hexagonal P(-6)2c]: Connellite

Oxide-Sulfate

[A(+)6][O2|SO4],H2O [Triclinic P(-1)]: Coquandite
[A(+)2][B(+)6][C(2+)][D(3+)6][O2|(SO4)12],18H2O [Trigonal P(-3)]: Metavoltine

Hydroxide-Oxide-Sulfate

[A(2+)4][B(2+)][(OH)4|O2|SO4],H2O [Monoclinic P2/c]: Elyite
[A(3+)16][(OH)9.6|O16|(SO4)3.2],10H2O [Tetragonal P4/m]: Schwertmannite

Hydroxide-Carbonate-Sulfate

[A(2+)8][(SO4)4|(OH)6|CO3],48H2O [Orthorhombic ???]: Nakauriite

Tellurite-Sulfate

[A(3+)2][SO4|(TeO3)3],3H2O [Orthorhombic Pmnb]: Poughite

Hydroxide-Oxide-Chromate

[A(3+)24][(OH)6|O25|(CrO4)8],3H2O [Monoclinic C2/m]: Dukeite

Molybdate

[A][(MoO4)2],nH2O [Amorphous]: Ilsemannite
[A2][(MoO4)3],8H2O [Orthorhombic ???]: Ferrimolybdite

Phosphate

[A(2+)][PO4],H2O [Hexagonal P622] Rhabdophane group: Brockite; Grayite; Rhabdophane-(Ce); Rhabdophane-(La); Rhabdophane-(Nd); Rhabdophane-(Y)
[A(2+)][PO4],2H2O [Monoclinic A2/a]: Churchite-(Y)
[A(3+)][PO4],2H2O [Orthorhombic Pcab] Variscite group: Strengite; Variscite
[A(3+)][PO4],2H2O [Monoclinic P2/n]: Metavariscite; Phosphosiderite; Kolbeckite
[A(+)][B(2+)][PO4],H2O [Orthorhombic Pmn2]: Niahite
[A(+)][B(2+)][PO4],2H2O [Monoclinic I2/a]: Brushite
[A(3+)][PO4],3H2O [Tetragonal ???]: Koninckite
[A(2+)][B][PO4]2,1-2H2O [Orthorhombic P222]: Ningyoite
[A(2+)2][B(2+)][PO4]2,2H2O [Monoclinic C2/c]: Parascholzite
[A(2+)2][B(2+)][PO4]2,2H2O [Monoclinic P2/a]: Veszelyite
[A(2+)2][B(2+)][PO4]2,2H2O [Triclinic P(-1)]: Messelite
[A3][PO4]2,3H2O [Orthorhombic Pbna]: Reddingite
[A(2+)3][PO4]2,4H2O [Monoclinic P2/a]: Ludlamite; Metaswitzerite
[A(2+)][B(2+)2][PO4]2,6H2O [Tetragonal P4/nmm]: Meta-autunite
[A(2+)3][(PO4)2],7H2O [Monoclinic P21a]: Switzerite
[A(2+)3][PO4]2,8H2O [Monoclinic I2/m,C2/m] Vivianite group: Arupite; Vivianite
[A(2+)][B(2+)2][PO4]2,8H2O [Tetragonal P4/n]: Metatorbernite
[A(2+)][B(2+)2][PO4]2,7H2O [Monoclinic P2]: Metauranocircite
[A(2+)][B(2+)2][PO4]2,10H2O [Tetragonal I4/mmm]: Autunite; Torbernite
[A(2+)][B(2+)2][PO4]2,10H2O [Tetragonal P4/nnc]: Uranocircite
[A(+)][B(3+)][C(2+)4][PO4]4,16H2O [Tetragonal I4/mmm]: Sabugalite
[A(2+)5][PO3(OH)|PO4]2,4H2O [Monoclinic C2/c] Hureaulite group: Hureaulite

Hydroxide-Phosphate

[A(2+)][B(3+)][(OH)2|PO4],H2O [Orthorhombic Bba2,Bbam] Childrenite group: Childrenite; Eosphorite
[A(2+)2][(OH)3|PO4],4-5H2O [???]: Bolivarite
[A(3+)3][(OH)6|PO4],6H2O [Amorphous]: Evansite
[A(2+)3-x][B(3+)x][(OH)x|(PO4)2],(8-x)H2O [Triclinic P1]: Metavivianite
[A(+)][B(3+)2][OH|(PO4)2],2H2O [Monoclinic P2/n]: Leucophosphite
[A(+)][B(3+)2][OH|(PO4)2],4H2O [Orthorhombic Pba2]: Minyulite
[A(2+)][B(3+)2][OH|PO4]2,4H2O [Monoclinic P2/b]: Bermanite
[A(2+)][B(3+)2][OH|PO4]2,8H2O [Triclinic P(-1)]: Stewartite; Ushkvite
[A(3+)3][(OH)3|(PO4)2],5H2O [Orthorhombic Pcmn] Wavellite group: Wavellite
[A(3+)3][(OH)3|(PO4)2],5H2O [Amorphous]: Santabarbaraite
[A(+)][B(3+)3][(OH)4|(PO4)2],2H2O [Tetragonal, P422]: Wardite
[A(2+)][B(3+)3][(OH)5|(PO4)2],H2O [Trigonal R(-3)m] Plumbogummite group: Crandallite; Gorceixite; Goyazite; Plumbogummite; Kintoreite
[A(+)][B(3+)3][OH|(PO4)3],9H2O [Trigonal R(-3)c]: Taranakite
[A(3+)4][(OH)3|(PO4)3],9H2O [Orthorhombic Pma2]: Vantasselite
[A(3+)4][(OH)3|(PO4)3].5H2O [Monoclinic P2/m]: Tinticite
[A(2+)][B(3+)4][(OH)5|(PO4)3],2H2O [Monoclinic C2/c]: Dufrénite, Dufrenite; Natrodufrénite, Natrodufrenite
[A(3+)][B(2+)6][(OH)6|(PO4)3],3H2O [Hexagonal P6/m]: Petersite-(Y)
[A(2+)][B(2+)][C(2+)2][D(3+)2][(OH)2|(PO4)4],8H2O [Monoclinic P2/a]: Jahnsite-(CaFeFe)
[A(2+)][B(3+)2][OH|PO4]4,6H2O [Triclinic P(-1)]: Strunzite
[A(2+)][B(3+)5][(OH)5|(PO4)4],4H2O [Monoclinic C2/c]: Beraunite
[A(2+)3][B(3+)4][(OH)6|(PO4)4],2H2O [Triclinic P1]: Gormanite
[A(2+)][B(3+)6][(OH)8|(PO4)4],4H2O [Triclinic P(-1)] Turquoise group: Faustite; Turquoise; Aheylite
[A(3+)6][(OH)8|(HPO4)2|(PO4)2],4H2O [Triclinic P(-1)]: Planerite
[A(+)][B(3+)8][(OH)7|(PO4)6],6.5H2O [Monoclinic B2/b]: Meurigite-K
[A(+)][B(3+)9][(OH)10|(PO4)6],5H2O [Monoclinic P2/c]: Kidwellite
[A(3+)11][(OH)6|(PO4)9],38H2O [Orthorhombic Pna2]: Vashegyite

Hydroxide-Fluoride-Phosphate

[A(3+)2][OH|F2|PO4] [Orthorhombic Fddd]: Fluellite
[A(+)][B(2+)2][C(3+)]3[F4|OH|(PO4)2] [Monoclinic P21/m]: Morinite
[(A(2+),[],B(3+))6][C(3+)8][F8|(OH)2|(PO4)8] [Orthorhombic P21mn]: Nevadaite

Oxide-Phosphate

[A(2+)2][B(3+)3][O2|(PO4)3],3H2O [Monoclinic A2/a] Mitridatite group: Mitridatite; Robertsite
[A(+)3][B(+)][C(2+)][D(2+)7][O|PO4]4,8H2O [Orthorhombic Cmcm]: Phosphuranylite

Hydroxide-Oxide-Phosphate

[A(3+)][(UO2)3][OH|O|(PO4)2],6H2O [Monoclinic P2/c]: Françoisite-(Nd), Francoisite-(Nd)
[A(3+)24][B(3+)][(OH)12|O6|(PO4)17],75H2O [Hexagonal P6/mmm]: Cacoxenite

Sulfate-Phosphate

[A(2+)2][B(+)][SO4|PO4],4H2O [Monoclinic Cc]: Ardealite

Hydroxide-Sulfate-Phosphate

[A(3+)2][OH|SO4|PO4] [Triclinic P(-1)]: Diadochite; Destinezite

Hydrate-Hydroxide-Carbonate-Nesoborate-Arsenite

[A(2+)3][B(4+)][(OH)6|CO3|(B(OH)4)0.5|(AsO3)0.5] [�Z�� P63]: Chiyokoite

Arsenate

[A(3+)][AsO4],2H2O [Orthorhombic Pcab]: Scorodite
[A(2+)][HAsO4],H2O [Monoclinic P21b]: Krautite
[A(2+)][HAsO4],H2O [Triclinic P(-1)]: Cobaltkoritnigite
[A(2+)][HAsO4],2H2O [Monoclinic P2/m]: Pharmacolite
[A(3+)][AsO4],3.5H2O [Monoclinic ???]: Kaňkite, Kankite
[A(2+)2][B][AsO4]2,2H2O [Monoclinic P2/c]: Brandtite
[A(2+)2][B][AsO4]2,2H2O [Triclinic P(-1)]: Parabrandtite; Talmessite
[A(2+)3][AsO4]2,4H2O [Monoclinic P21/n]: Castellaroite
[A(2+)3][AsO4]2,4H2O [Triclinic P(-1)]: Sterlinghillite
[A(2+)][B(2+)2][AsO4]2,8H2O [Tetragonal P4/n]: Metazeunerite
[A(2+)][B(2+)2][AsO4]2,12H2O [Tetragonal I4/mmm]: Zeunerite
[A(2+)3][AsO4]2,8H2O [Monoclinic I2/m,C2/m] Vivianite group: Annabergite (All coodinated water); Erythrite (All coodinated water); Hörnesite, Hornesite; Köttigite, Kottigite; Parasymplesite; Manganohörnesite, Manganohornesite
[A(2+)3][AsO4]2,8H2O [Triclinic P(-1)]: Symplesite
[A(2+)3][AsO4]2,10H2O [Triclinic P(-1)]: Rauenthalite
[A(2+)3][AsO4]2,11H2O [Triclinic P(-1)]: Phaunouxite
[A5][AsO4]2,10H2O [Triclinic P(-1)]: Geigerite
[A(2+)5][(HAsO4)2|(AsO4)2],4H2O [Monoclinic C2/c]: Villyaellenite; Miguelromeroite
[A(2+)5][(HAsO4)2|(AsO4)2],9H2O [Monoclinic P2/b]: Guérinite, Guerinite
[A(2+)5][(HAsO4)2|(AsO4)2],9H2O [Triclinic P(-1)]: Ferrarisite
[A(2+)4][B(2+)][(HAsO4)2|(AsO4)2],11H2O [Triclinic P(-1)]: Picropharmacolite

Hydroxide-Arsenate

[A(2+)2][OH|AsO4],H2O [Monoclinic P2/c]: Legrandite
[A(2+)][B(3+)2][(OH)2|(AsO4)2],4H2O [Monoclinic P12/c]: Bendadaite
[A(2+)][B(3+)2][(OH)2|(AsO4)2],4H2O [Triclinic P1]: Coralloite
[A(2+)3][B(3+)][(OH)3|(AsO4)2],4H2O [Orthorhombic mm2]: Yukonite
[A(2+)2][B(3+)2][(OH)4|(AsO4)2],H2O [Monoclinic P2/m]: Chenevixite
[A(2+)2][B(2+)3][(OH)4|(AsO4)2],9H2O [Hexagonal P6/mmc]: Wallkilldellite; Wallkilldellite-(Fe)
[A(2+)][B(3+)3][(OH)5|(AsO4)2],H2O [Trigonal R3m]: Philipsbornite
[A(2+)6][(OH)6|(AsO4)2],H2O [Monoclinic P21/c]: Philipsburgite
[A(+)][B(3+)4][(OH)4|(AsO4)3],6-7H2O [Cubic I(-4)3m]: Pharmacosiderite
[A(2+)0.5][B(3+)4][(OH)4|(AsO4)3],5H2O [Tetragonal P(-4)2m]: Bariopharmacosiderite
[A(2+)][B(2+)6][(OH)6|HAsO4|(AsO4)2],3H2O [Hexagonal 6/m]: Zálesíite, Zalesiite
[A(3+)][B(2+)6][(OH)6|AsO4|(AsO4)2],3H2O [Hexagonal 6/m]: Agardite-(Y); Mixite

Chloride-Arsenate

[A(+)][B(2+)][C(2+)5][Cl|(AsO4)4],5H2O [Monoclinic P21/n]: Lavendulan

Hydroxide-chloride-Arsenate

[A(2+)2][B(2+)5][C][Cl|(OH)6|(AsO4)4],6H2O [Monoclinic C2/m]: Richelsdorfite

Oxide-Arsenate

[A(2+)2][B(3+)3][O2|(AsO4)3],3H2O [Monoclinic A2/a]: Arseniosiderite

Hydroxide-Carbonate-Arsenate

[A(2+)2][B(2+)9][(OH)8|CO3|(AsO4)4],11H2O [Orthorhombic Pmma]: Tyrolite

Hydroxide-Sulfate-Arsenate

[A(2+)9][(OH)10|SO4|(AsO4)2],7H2O [Orthorhombic P222]: Parnauite
[A(3+)4][OH|SO4|(AsO4)3],15H2O [Orthorhombic P222]: Zýkaite
[A(2+)18][B(3+)2][(OH)2|(SO4)3|(AsO4)3],33H2O [Trigonal R(-3)m]: Chalcophyllite

Hydrate-Hydroxide-Carbonate-Sulfate-Arsenate

[A(2+)15][(OH)14|(CO3)4|SO4|(AsO4)2],7H2O [Monoclinic P(-1)]: Claraite

Hydroxide-Molybdate-Arsenate

[Mo8As2Fe3O36(OH)],4H2O [Monoclinic C2/m]: Betpakdalite-CaCa (6 coordinated water to Mg, 17 coordinated water to Ca₂)

Vanadate

[A(+)2][B(2+)2][(VO4)2],3H2O [Monoclinic P2/a]: Carnotite (Partly Zeolitic water)
[A(2+)][(UO2)2][(VO4)2],5-8H2O [Orthorhombic Pnan]: Tyuyamunite (Partly Zeolitic water)

Nesosilicate

[(UO2)2][SiO4],2H2O [Orthorhombic Fddd]: Soddyite
[A(2+)][UO2][SiO4],H2O [Monoclinic P2/a,P2/c]: Stringhamite; Kasolite
[A(+)][UO2][HSiO4],2H2O [Monoclinic P2]: Boltwoodite
[A(2+)3][HSiO4]2,2H2O [Monoclinic P2]: Afwillite
[A(2+)][(UO2)2][HSiO4]2,5H2O [Monoclinic P2]: Uranophane; β-Uranophane
[A(2+)][(UO2)2][HSiO4]2,6H2O [Triclinic P(-1)]: Sklodowskite; Cuprosklodowskite
[A(2+)][(UO2)2][Si5O12(OH)2],4.5H2O [Orthorhombic Cmcm]: Haiweeite
[A(+)2][(UO2)2][Si5O13],H2O [Monoclinic C2/m]: Weeksite

Fluoride-Nesosilicate

[A(2+)2][F|HSiO4],H2O [Triclinic P(-1)]: Bultfonteinite

Carbonate-Sulfate-Hydroxysilicate

[A(2+)3][CO3|SO4|Si(OH)6],12H2O [Hexagonal P6/m]: Thaumasite

Hydroxide-Pyrovanadate

[A(2+)3][(OH)2|V2O7],2H2O [Monoclinic C2/m]: Volborthite

Sorosilicate

[A(2+)3][Si2O7],0.5H2O [Monoclinic P2/m]: Killalaite
[A(2+)2][H2Si2O7],H2O [Orthorhombic Fdd2]: Suolunite
[A(2+)2][B(2+)2][Si3O10],2H2O [Monoclinic P2/m]: Kinoite

Hydroxide-Sorosilicate

[A(2+)4][(OH)2|Si2O7],H2O [Orthorhombic Imm2]: Hemimorphite
[A(+)][B(3+)2][(OH)2|Si2O7],H2O [Orthorhombic Cmcm,Ccmm] Lawsonite group: Hennomartinite; Itoigawaite; Lawsonite; Noelbensonite

Hydroxide-Nesosilicate-Sorosilicate

[A(2+)2][B(2+)][C(3+)2][(OH)2|SiO4|Si2O7],H2O [Monoclinic A2/m,C2/m] Pumpellyite group: Pumpellyite-(Fe2+); Pumpellyite-(Mn2+); Pumpellyite-(Mg); Julgoldite-(Fe2+); Okhotskite; Poppiite

Hydroxide-Oxide-Nesosilicate-Sorosilicate

[A(2+)2][B(3+)][C(3+)2][OH|O|SiO4|Si2O7],H2O [Monoclinic A2/m,C2/m] Pumpellyite group: Pumpellyite-(Al)

Cyclosilicate (Double ring)

[A(+)][B(2+)2][C3][Si12O30],H2O [Hexagonal P6/mcc]: Milarite

Hydroxide-Oxide-Cyclosilicate (Single ring)

[A(+)][B(2+)2][C(2+)2][D(2+)][E2][OH|O|Si8O24],H2O [Orthorhombic Ccm2]: Strontio-orthojoaquinite
[A(+)][B(2+)2][C(2+)2][D(2+)][E2][OH|O|Si8O24],H2O [Monoclinic C2/m]: Strontiojoaquinite

Carbonate-Cyclosilicate (Single ring)

[A(2+)7][CO3|(Si3O9)2],2H2O [Monoclinic C2/m]: Scawtite
[A(2+)2][B(2+)2][CO3|Si4O12],H2O [Orthorhombic Pmnb]: Kainosite-(Y)

Hydrate-Cyclo-Aluminosilicate (Double ring)

[A(2+)][B(2+)2][C(3+)3][Al3Si9O30] [Orthorhombic Pnna]: Armenite

Inosilicate (Single chain)

[A(2+)][HSi2O6],2H2O [Monoclinic P2/a]: Krauskopfite
[A(2+)][B][(SiO3)3],2H2O [Orthorhombic Pnna]: Stokesite
[A(2+)2][B(2+)7][(HSi5O15)2],5H2O [Triclinic P(-1)]: Inesite
[A(2+)9][B(+)2][(SiO3)6],8H2O [Triclinic P(-1)]: Jennite
[A(2+)5][(HSi3O9)2],4H2O [Monoclinic Cc]: Clinotobermorite
[A(2+)5][(HSi3O9)2],5H2O [Orthorhombic C222]: Tobermorite
[A(2+)5][(HSi3O9)2],7H2O [Monoclinic B11b]: Plombièrite, Plombierite

Hydroxide-Inosilicate (Single chain)

[A(2+)9][(OH)8|(HSi3O9)2],6H2O [Triclinic P(-1)]: Jennite

Hydroxide-Inosilicate (Double chain)

[A(2+)8][(OH)4|(Si4O11)2],H2O [Orthorhombic Pcnb]: Plancheite

Oxide-Inosilicate (Single chain)

[A(2+)3][B(3+)][O|(SiO3)4],2-3H2O [Monoclinic P2/m]: Ohmilite

Carbonate-Inosilicate

[A(2+)2][B(3+)2][(CO3)3|(Si2O5)2],H2O [Orthorhombic 2/m]: Caysichite-(Y)

Sorosilicate-Ino-Borosilicate

[A(2+)5][Si2O7|BSi2O9],4H2O [Triclinic P(-1)]: Oyelite

Phyllosilicate (Single chain)

[A(2+)][SiO3],H2O [Amorphous]: Neotocite
[A(2+)][Si2O5],2H2O [Triclinic P(-1)]: Okenite

Hydroxide-Phyllosilicate

[A(2+)2][B(+)2][(OH)4|Si2O5],nH2O [Orthorhombic ???]: Chrysocolla
[A(3+)2][(OH)4|Si2O5],2H2O [Monoclinic ???]: Hisingerite; Halloysite-10Å
[A(2+)3][(OH)2|(Si2O5)2],4H2O [Monoclinic C2/m]: Zincsilite
[A(+)0.3][B(3+)2][(OH)2|(Si2O5)2],nH2O [Monoclinic C2/m]: Montmorillonite
[A(+)0.2][B(2+)3][(OH)2|(Si2O5)2],nH2O [Monoclinic B2/m]: Swinefordite
[A(2+)4][(OH)2|(Si2O5)3],3H2O [Hexagonal P6]: Gyrolite
[A(2+)4][(OH)2|(Si2O5)3],6H2O [Orthorhombic Pnan]: Sepiolite
[A(+)][B(2+)6][(OH)4|AlSi7O20],nH2O [Monoclinic C2/m]: Hydrobiotite
[A(2+)5][(OH)2|(Si2O5)4],8H2O [Monoclinic C2/m]: Palygorskite
[A(+)][B(2+)4][OH|(Si2O5)4],8H2O [Tetragonal P4/mnc] Apophyllite group: Apophyllite-(KOH)
[A(2+)9][(OH)10|(Si2O5)4],nH2O [Orthothombic ???]: Corrensite
[A(+)0.5][(B(3+),C(2+))6][(OH)12|(Si,Al)8O18],5H2O [Monoclinic C2]: Tosudite
[A(+)][B(2+)][C(3+)][(OH)6|(Si3O8)3],3H2O [Triclinic P(-1)]: Ajoite
[A(+)][B(2+)8][(OH)6|(Si2O5)6],nH2O [Triclinic P(-1)]: Stilpnomelane
[A(2+)14][(OH)8|Si24O58],2H2O [Trigonal P(-3)]: Truscottite

Fluoride-Phyllosilicate

[A(+)][B(2+)4][F|(Si2O5)4],8H2O [Tetragonal P4/mnc] Apophyllite group: Apophyllite-(KF)
[A(+)][B(2+)4][F|(Si2O5)4],8H2O [Orthorhombic Pnnm] Apophyllite group: Apophyllite-(NaF)

Hydroxide-Fluoride-Phyllosilicate

[A(2+)13][F8|(OH)2|(Si5O14)2],6H2O [Triclinic ???]: Zeophyllite

Phyllo-Borosilicate

[A(2+)10][B2Si8O29],12H2O [Orthorhombic B???]: Oyelite

Phyllo-Aluminosilicate

[A(2+)][(Si,Al)4(O,OH)8],H2O [Monoclinic P2]: Cymrite
[A(+)][B(2+)8][(Si,Al)12O36],nH2O [Triclinic P(-1)]: Stilpnomelane

Hydroxide-Phyllo-Aluminosilicate

[A(2+)0.3][B(2+)3][(OH)2|(Si,Al)4O10],4H2O [Monoclinic C2/m]: Ferrosaponite; Saponite; Sauconite; Vermiculite
[A(+)0.3][B(3+)2][(OH)2|(Si,Al)4O10],nH2O [Monoclinic C2/m]: Nontronite; Beidellite
[A(+)][B(3+)4][(OH)4|(Si,Al)8O20],2H2O [Monoclinic ???]: Rectorite
[A(+)1-2][B6][(OH)4|(Si,Al)10O24],nH2O [Monoclinic Ia,A2/a,P2/a]: Eggletonite; Ganophyllite; Tamaite
[A(2+)][B(2+)10][(OH)8|(Si,Al)16O38],nH2O [Monoclinic A2/a]: Bannisterite

Oxide-Phyllo-Alluminosilicate

[A(3+)2][O3|(SiO2)1.3-2],2.5-3H2O [Amorphous]: Allophane

Carbonate-Tecto-Aluminosilicate

[A(+)6][B(2+)2][(CO3)2|(AlSiO4)6],2H2O [Hexagonal P6]: Cancrinite

Orthotellurate

[A(2+)3][TeO6] [Cubic ???]: Mcalpineite

Hydroxide-Tungstate (Octahedron framework)

[A(3+)2][(OH)6|W2O6],4H2O [Triclinic P(-1)]: Mpororoite