| yafsoanite | Ca3Zn3(TeO6)2 |
| yagiite | (Na,K)1.5Mg2(Al,Mg)3(Si,Al)12O30 |
| yakhontovite | (Ca,Na)0.5(Cu,Fe,Mg)2Si4O10(OH)2·3H2O |
| yanomamite | InAsO4·2H2O |
| yaroslavite | Ca3Al2F10(OH)2·H2O |
| yarrowite | Cu9S8 |
| yavapaiite | KFe(SO4)2 |
| yeatmanite | Mn9Zn6Sb2Si4O28 |
| yecoraite | Bi5Fe3TeO3(TeO4)2O9·9H2O |
| yedlinite | Pb6CrCl6(O,OH)8 |
| ye'elimite | Ca4Al6O12SO4 |
| yftisite | (Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6 |
| yimengite | K(Cr,Ti,Fe,Mg)12O19 |
| yingjiangite | K2Ca(UO2)7(PO4)4(OH)6·6H2O |
| yixunite | Pt3In |
| yoderite | (Mg,Al,Fe)8Si4(O,OH)20 |
| yofortierite | (Mn,Mg)5Si8O20(OH)2·8-9H2O |
| yoshimuraite | (Ba,Sr)2TiMn2(SiO4)2(PO4,SO4)(OH,Cl) |
| yoshiokaite | Ca(Al,Si)2O4 |
| yttrialite-(Y) | (Y,Th)2Si2O7 |
| yttrobetafite-(Y) | (Y,U,Ce)2(Ti,Nb,Ta)2O6OH |
| yttrocolumbite-(Y) | (Y,U,Fe)(Nb,Ta)O4 |
| yttrocrasite-(Y) | (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6 |
| yttropyrochlore-(Y) | (Y,Na,Ca,U)2-X(Nb,Ta,Ti)2(O,OH)7 |
| yttrotantalite-(Y) | (Y,U,Fe)(Ta,Nb)O4 |
| yttrotungstite-(Y) | YW2O6(OH)3 |
| yuanfullite | (Mg,Fe)(Fe3+,Al,Mg,Ti,Fe2+)BO3O |
| yuanjiangite | AuSn |
| yugawaralite | CaAl2Si6O16·4H2O |
| yukonite | Ca2Fe3(AsO4)4OH·12H2O |
| yuksporite | (K,Ba)NaCa2(Si,Ti)4O11(F,OH)·H2O |
| yushkinite | V1-XS·n(Mg,Al)(OH)2 |
| yvonite | CuAsO3OH |