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Potassium n°19
Minéraux contenant du potassium :
| Minéral | Formule chimique |
| Adulaire | KAlSi3O8 |
| Alunite | KAl3(SO4)2(OH)6 |
| Amazonite | KAlSi3O8 |
| Apophyllite | KCa4Si8O20(F,OH).8H2O |
| Astrophyllite | (K,Na)3(Fe,Mn)7Ti2Si8(O,OH)31 |
| Biotite | K(Mg,Fe)3(Si3Al)O10(OH,F)2 |
| Carnallite | KMgCl3.6H2O |
| Carnotite | K2(UO2)2(VO4)2.3H2O |
| Cryptomélane | KMn8O16 |
| Fuchsite | (K,Na)(Al,Cr,Fe)2(Si,Al)3O10(OH,F)2 |
| Glauconite | (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2 |
| Hanksite | KNa22(SO4)9(CO3)2Cl |
| Heulandite | (Na,K)Ca4Al9Si27O72.24H2O |
| Hyalophane | (K,Ba)(Al,Si)4O8 |
| Illite | (K,H3O)Al2(Si3Al)O10(H2O,OH)2 |
| Jarosite | KFe3(SO4)2(OH)6 |
| Lépidolite | K(Li,Al)3(Si,Al)4O10(F,OH)2 |
| Leucite | KAlSi2O6 |
| Microcline | KAlSi3O8 |
| Minyulite | KAl2(PO4)2(OH,F).4H2O |
| Muscovite | KAl2(Si,Al)3O10(OH,F)2 |
| Néphéline | (Na,K)AlSiO4 |
| Neptunite | KNa2Li(Fe,Mg,Mn)2Ti2Si8O24 |
| Nitre | KNO3 |
| Orthose | KAlSi3O8 |
| Pharmacosidérite | KFe4(AsO4)3(OH)4.6-7H2O |
| Phillipsite | K(Ca0.5,Na)2Si5Al3O16.6H2O |
| Phlogopite | KMg3Si3AlO10(F,OH)2 |
| Rhodizite | (K,Cs)Be4Al4(B,Be)12O28 |
| Sanidine | (K,Na)(Si,Al)4O8 |
| Stilpnomélane | (K,Ca,Na)(Fe,Mg,Al)12(Si,Al)16(O,OH)54.nH2O |
| Sylvite | KCl |
| Zinnwaldite | K(Al,Fe,Li)3(Si,Al)4O10(OH)F |