| Jarosite | KFe33+(SO4)2(OH)6 |
|---|
| Jeanbandyite | Fex3+Fe2+1-xSn(OH)6-xOx |
|---|
| Jeppeite | (K,Ba)2(Ti,Fe)6O13 |
|---|
| Jimthompsonite | (Mg,Fe)5Si6O16(OH)2 |
|---|
| Jinshajiangite | BaNaFe42+Ti2(Si2O7)2O2(OH)2F |
|---|
| Joaquinite-(Ce) | NaBa2Ce2FeTi2[Si4O12]2O2(OH,F) · H2O |
|---|
| Joesmithite | Pb2+Ca2(Mg3Fe23+)(Si6Be2)O22(OH)2 |
|---|
| Johnsomervilleite | Na3CaFe11(PO4)9 |
|---|
| Johntomaite | BaFe22+Fe23+(PO4)3(OH)3 |
|---|
| Johnwalkite | K(Mn2+,Fe2+,Fe3+)2(Nb5+,Ta5+)(PO4)2O2 · 2(H2O,OH) |
|---|
| Joosteite | Mn2+(Mn3+,Fe3+)(PO4)O |
|---|
| Juanitaite | (Cu,Ca,Fe)10Bi(AsO4)4(OH)11 · 2H2O |
|---|
| Julgoldite-(Fe2+) | Ca2Fe2+Fe23+[Si2O6OH][SiO4](OH)2(OH) |
|---|
| Julgoldite-(Fe3+) | Ca2Fe3+Fe23+[Si2O6OH][SiO4](OH)2O |
|---|
| Julgoldite-(Mg) | Ca2MgFe23+[Si2O6OH][SiO4](OH)2(OH) |
|---|
| Jungite | Ca2Zn4Fe83+(PO4)9(OH)9 · 16H2O |
|---|
| Kaatialaite | Fe(H2AsO4)3 · 5H2O |
|---|
| Kabalovite | Fe32+Fe43+(PO4)6 |
|---|
| Kahlerite | Fe(UO2)2(AsO4)2 · 12H2O |
|---|
| Kainotropite | Cu4Fe3+O2(V2O7)(VO4) |
|---|
| Kalifersite | (K,Na)5Fe73+Si20O50(OH)6 · 12H2O |
|---|
| Kamarizaite | Fe33+(AsO4)2(OH)3 · 3H2O |
|---|
| Kamiokite | Fe2Mo3O8 |
|---|
| Kaňkite | FeAsO4 · 3.5H2O |
|---|
| Kapundaite | NaCaFe4(PO4)4(OH)3 · 5H2O |
|---|
| Karenwebberite | NaFe2+PO4 |
|---|
| Karibibite | Fe33+(As3+O2)4(As23+O5)(OH) |
|---|
| Karnasurtite-(Ce) | (Ce,La,Th)(Ti,Nb)(Al,Fe)(Si2O7)(OH)4 · 3H2O |
|---|
| Karwowskiite | Ca9Mg(Fe2+0.5◻0.5)(PO4)7 |
|---|
| Kastningite | (Mn2+,Fe2+,Mg)Al2(PO4)2(OH)2 · 8H2O |
|---|
| Katoptrite | (Mn2+,Mg)13(Al,Fe3+)4Sb25+(SiO4)2O20 |
|---|
| Kazakhstanite | Fe53+V34+V125+O39(OH)9 · 9H2O |
|---|
| Keckite | CaMn2+(Fe3+Mn2+)Fe23+(PO4)4(OH)3 · 7H2O |
|---|
| Kenngottite | Mn32+Fe43+(PO4)4(OH)6(H2O)2 |
|---|
| Kentbrooksite | (Na,REE)15(Ca,REE)6(Mn2+,Fe2+)3Zr3Nb[Si25O74]F2 · 2H2O |
|---|
| Kerimasite | Ca3Zr2(SiO4)(Fe3+O4)2 |
|---|
| Kernowite | Cu2Fe(AsO4)(OH)4 · 4H2O |
|---|
| Keystoneite | Mg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2O |
|---|
| Khesinite | Ca4(Mg3Fe93+)O4(Fe93+Si3)O36 |
|---|
| Khmaralite | (Mg,Al,Fe)16[(Al,Si,Be)12O36]O4 |
|---|
| Khomyakovite | Na12Sr3Ca6Fe3Zr3W[Si25O73](O,OH,H2O)3(OH,Cl)2 |
|---|
| Khrenovite | Na3Fe23+(AsO4)3 |
|---|
| Kidwellite | NaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33 |
|---|
| Kingsmountite | Ca3MnFeAl4(PO4)6(OH)4 · 12H2O |
|---|
| Kinichilite | Mg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2O |
|---|
| Kintoreite | PbFe3(PO4)(PO3OH)(OH)6 |
|---|
| Kirschsteinite | CaFe2+SiO4 |
|---|
| Kleberite | FeTi6O11(OH)5 |
|---|
| Klöchite | K◻2(Fe2+Fe3+)Zn3[Si12O30] |
|---|
| Klyuchevskite | K3Cu3(Fe3+,Al)(SO4)4O2 |
|---|
