Beginning with K.
- KaatialaiteFe3+[AsO2(OH)2]3 · 5H2OMineralphosphate
- KabaloviteFe2+3Fe3+4(PO4)6Mineralphosphate
- Kadyrelite([Hg1+]2)3OBr3(OH)Mineralhalide
- KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2Mineralsilicate
- KahlenbergiteKAl11O17Mineraloxide
- KahleriteFe2+(UO2)2(AsO4)2 · 12H2OMineralphosphate
- KainiteKMg(SO4)Cl · 2.75H2OMineralsulfate
- Kainosite-(Y)Ca2Y2(SiO3)4(CO3) · H2OMineralsilicate
- KainotropiteCu4Fe3+O2(V2O7)(VO4)Mineralphosphate
- KaitianiteTi3+2Ti4+O5Mineraloxide
- KalborsiteK6Al4BSi6O20(OH)4ClMineralsilicate
- KalgoorlieiteAs2Te3Mineralsulfide
- KaliboriteKHMg2B12O16(OH)10 · 4H2OMineral—
- KaliciniteKH(CO3)Mineralcarbonate
- KalifersiteK5Fe3+7Si20O50(OH)6 · 12H2OMineralsilicate
- KalininiteZnCr2S4Mineralsulfide
- KaliniteKAl(SO4)2 · 11H2OMineralsulfate
- KaliochalciteKCu2(SO4)2[(OH)(H2O)]Mineralsulfate
- KaliophiliteKAlSiO4Mineralsilicate
- KalistrontiteK2Sr(SO4)2Mineralsulfate
- KalithalliteK3Tl3+Cl6 · 2H2OMineralhalide
- KalsiliteKAlSiO4Mineralsilicate
- KalungaitePdAsSeMineralsulfide
- Kalyuzhnyite-(Ce)NaKCaSrCeTi(Si8O21)OF(H2O)3Mineralsilicate
- Kamacite(Fe,Ni)Variety—
- KamaishiliteCa2(SiAl2)O6(OH)2Mineralsilicate
- KamarizaiteFe3+3(AsO4)2(OH)3 · 3H2OMineralphosphate
- KambaldaiteNaNi4(CO3)3(OH)3 · 3H2OMineralcarbonate
- KamchatkiteKCu3O(SO4)2ClMineralsulfate
- KameneviteK2TiSi3O9 · H2OMineralsilicate
- KamiokiteFe2+2Mo4+3O8Mineraloxide
- KamitugaitePbAl(UO2)5(PO4)3O2(OH)2(H2O)11.5Mineralphosphate
- Kamotoite-(Y)Y2O4(UO2)4(CO3)3 · 14H2OMineralcarbonate
- KampeliteBa3Mg1.5Sc4(PO4)6(OH)3 · 4H2OMineralphosphate
- KampfiteBa12(Si11Al5)O31(CO3)8Cl5Mineralsilicate
- Kamphaugite-(Y)CaY(CO3)2(OH) · H2OMineralcarbonate
- Kanatzidisite(SbBiS3)2Te2Mineralsulfide
- KanemiteNaSi2O4(OH) · 3H2OMineralsilicate
- Kangite(Sc,Ti,Al,Zr,Mg,Ca,◻)2O3Mineraloxide
- KangjinlaiteTi11Si10Mineralnative
- KaňkiteFe3+(AsO4) · 3.5H2OMineralphosphate
- KannaniteCa4Al4(MgAl)(VO4)(SiO4)2(Si3O10)(OH)6Mineralsilicate
- KanoiteMnMgSi2O6Mineralsilicate
- KanonaiteMn3+AlOSiO4Mineralsilicate
- KanonenspatCaCO3Variety—
- KanoneroviteNa3MnP3O10 · 12H2OMineralphosphate
- KantoriteK2NaMg(SO4)2FMineralsulfate
- KaoliniteAl2Si2O5(OH)4Mineralsilicate
- KapellasiteCu3Zn(OH)6Cl2Mineralhalide
- Kapitsaite-(Y)Ba4Y2Si8B4O28FMineralsilicate
- KapundaiteCaNaFe3+4(PO4)4(OH)3 · 5H2OMineralphosphate
- KapustiniteNa6ZrSi6O16(OH)2Mineralsilicate
- KarasugiteSrCaAlF7Mineralhalide
- KarchevskyiteMg18Al9(OH)54Sr2(CO3)9(H2O)6(H3O)5Mineralcarbonate
- KarelianiteV2O3Mineraloxide
- KarenwebberiteNaFe2+(PO4)Mineralphosphate
- KaribibiteFe3+3(As3+O2)4(As3+2O5)(OH)Mineraloxide
- KarlditmariteCu9O4(PO4)2(SO4)2Mineralphosphate
- Karlite(Mg,Al)6.5(BO3)3(OH)4(◻,Cl)0.5Mineral—
- KarlleuiteCa2MnO4Mineraloxide
- Karlseifertite Pb(Ga2Ge)(AsO4)2(OH)6Mineralsulfate
- Karnasurtite-(Ce)CeTiAlSi2O7(OH)4 · 3H2OMineralsilicate
- KarpenkoiteCo3(V2O7)(OH)2 · 2H2OMineralphosphate
- Karpinskite(Mg,Ni)2Si2O5(OH)2 (?)Mineralsilicate
- KarpoviteTl2VO(SO4)2(H2O)Mineralsulfate
- Karupmøllerite-Ca(Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 7H2OMineralsilicate
- KarwowskiiteCa9Mg(Fe2+0.5◻0.5)(PO4)7Mineralphosphate
- KasatkiniteBa2Ca8B5Si8O32(OH)3 · 6H2OMineralsilicate
- KashiniteIr2S3Mineralsulfide
- Kaskasite(Mo,Nb)S2 · (Mg1-xAlx)(OH)2+xMineralsulfide
- KasolitePb(UO2)(SiO4) · H2OMineralsilicate
- Kasparite(Mg,Co)Al2(SO4)4·22H2OVariety—
- KassiteCaTi2O4(OH)2Mineraloxide
- KastningiteMn2+Al2(PO4)2(OH)2 · 8H2OMineralphosphate
- KataniteBa3NbFe3Si2O14Mineralsilicate
- KatayamaliteKLi3Ca7Ti2(SiO3)12(OH)2Mineralsilicate
- Katerinopoulosite(NH4)2Zn(SO4)2 · 6H2OMineralsulfate
- KatiarsiteKTiO(AsO4)Mineralphosphate
- KatoiteCa3Al2(OH)12Mineraloxide
- KatophoriteNa(NaCa)(Mg4Al)(Si7Al)O22(OH)2Mineralsilicate
- KatoptriteMn2+13Al4Sb5+2O20(SiO4)2Mineralsilicate
- KatsarositeZn(C2O4) · 2H2OMineral—
- KawazuliteBi2Te2SeMineralsulfide
- KayrobertsoniteMnAl2(PO4)2(OH)2 · 6H2OMineralphosphate
- KayupovaiteNa2Mn10[(Si14Al2)O38(OH)8] · 7H2OMineralsilicate
- KazakhstaniteFe3+5V4+3V5+12O39(OH)9 · 9H2OMineralphosphate
- KazakoviteNa6Mn2+TiSi6O18Mineralsilicate
- KazanskyiteBa◻TiNbNa3Ti(Si2O7)2O2(OH)2(H2O)2Mineralsilicate
- KaznakhtiteNi6Co3+2(CO3)(OH)16 · 4H2OMineralcarbonate
- KeckiteCaMn(Fe3+,Mn)2Fe3+2(PO4)4(OH)3 · 7H2OMineralphosphate
- KegelitePb4Al2Si4O10(SO4)(CO3)2(OH)4Mineralsilicate
- KegginitePb3Ca3[AsV12O40(VO)] · 20H2OMineralphosphate
- Keilhauite(Ca,Y3+)(Ti,Al,Fe3+)[SiO4]OVariety—
- KeiliteFeSMineralsulfide
- KeithconnitePd20Te7Mineralsulfide
- Keiviite-(Y)Y2Si2O7Mineralsilicate
- Keiviite-(Yb)Yb2Si2O7Mineralsilicate
- KeldyshiteNa2ZrSi2O7Mineralsilicate
- Kellyite(Mn2+,Mg,Al)3(Si,Al)2O5(OH)4Mineralsilicate
- KelyaniteHg12SbO6BrCl2Mineralhalide
- KemmlitziteSrAl3(AsO4)(SO4)(OH)6Mineralphosphate
- KempiteMn2+2Cl(OH)3Mineralhalide
- KenhsuiteHg3S2Cl2Mineralsulfide
- KenngottiteMn2+3Fe3+4(PO4)4(OH)6(H2O)2Mineralphosphate
- Kennygayite[Pb4O2(OH)2](SO4)Mineralsulfate
- Kenoargentotennantite-(Fe)Ag6(Cu4Fe2)As4S12◻Mineralsulfide
- Kenoargentotetrahedrite-(Fe)Ag6(Cu4Fe2)Sb4S12◻Mineralsulfide
- Kenoargentotetrahedrite-(Zn)Ag6(Cu4Zn2)Sb4S12◻Mineralsulfide
- Kenomicrolite◻2Ta2[O4(OH)2]◻Mineraloxide
- Kenoplumbomicrolite(Pb,◻)2Ta2O6[◻,(OH),O]Mineraloxide
- Kenorozhdestvenskayaite-(Fe)Ag6(Ag4Fe2)Sb4S12◻Mineralsulfide
- KenotobermoriteCa4Si6O15(OH)2(H2O)2 · 3H2OMineralsilicate
- Kentbrooksite(Na,REE)15(Ca,REE)6Mn3Zr3Nb(Si25O73)(O,OH,H2O)3(F,Cl)2Mineralsilicate
- KentrolitePb2Mn3+2O2(Si2O7)Mineralsilicate
- KenyaiteNa2Si22O41(OH)8 · 6H2OMineralsilicate
- KepleriteCa9(Ca0.5◻0.5)Mg(PO4)7Mineralphosphate
- KerimasiteCa3Zr2(SiFe3+2)O12Mineralsilicate
- KermesiteSb2OS2Mineralsulfide
- KerniteNa2B4O6(OH)2 · 3H2OMineral—
- KernowiteCu2Fe3+(AsO4)(OH)4 · 4H2OMineralphosphate
- Kerolite(Mg,Ni)3Si4O10(OH)2·nH2O (n ~ 1)Mineral—
- Kesebolite-(Ce)CeCa2Mn(AsO4)(SiO3)3Mineralsilicate
- KësteriteCu2ZnSnS4Mineralsulfide
- KettneriteCaBiO(CO3)FMineralcarbonate
- KeutschiteCu2AgAsS4Mineralsulfide
- Keyite(◻0.5Cu0.5)CuCdZn2(AsO4)3 · H2OMineralphosphate
- KeystoneiteMg0.5NiFe3+(Te4+O3)3 · 4H2OMineraloxide
- KhademiteAl(SO4)F · 5H2OMineralsulfate
- KhaidarkaniteCu4Al3(OH)14F3 · 2H2OMineralhalide
- KhamrabaeviteTiCMineralnative
- Khanneshite(Na,Ca)3(Ba,Sr,Ce,Ca)3(CO3)5Mineralcarbonate
- Kharaelakhite(Cu,Pt,Pb,Fe,Ni)9S8Mineralsulfide
- KhatyrkiteCuAl2Mineralnative
- KhesiniteCa4(Mg2Fe3+10)O4(Fe3+10Si2)O36Mineralsilicate
- KhibinskiteK2ZrSi2O7Mineralsilicate
- KhiniteCu2+3PbTe6+O6(OH)2Mineraloxide
- KhmaraliteMg4(Mg3Al9)O4[Si5Be2Al5O36]Mineralsilicate
- KhomyakoviteNa12Sr3Ca6Fe3Zr3W(Si25O73)(O,OH,H2O)3(Cl,OH)2Mineralsilicate
- Khorixasite(Bi0.67◻0.33)Cu(VO4)(OH)Mineralphosphate
- KhrenoviteNa3Fe3+2(AsO4)3Mineralphosphate
- Khristovite-(Ce)CaCe(MgAlMn2+)[Si2O7][SiO4]F(OH)Mineralsilicate
- KhurayyimiteCa7Zn4(Si2O7)2(OH)10 · 4H2OMineralsilicate
- KhvorovitePb4Ca2[Si8B2(SiB)O28]FMineralsilicate
- KiddcreekiteCu6WSnS8Mineralsulfide
- Kidney OreFe2O3Variety—
- KidoditeBaMg2Fe16O27Mineraloxide
- KidwelliteNaFe3+9+x(PO4)6(OH)11 · 3H2O (x ≈ 0.33)Mineralphosphate
- KieftiteCoSb3Mineralsulfide
- KieseriteMg(SO4) · H2OMineralsulfate
- Kihlmanite-(Ce)Ce2TiO2(SiO4)(HCO3)2(H2O)Mineralsilicate
- KilchoaniteCa6(SiO4)(Si3O10)Mineralsilicate
- KillalaiteCa6.4[H0.6Si2O7]2(OH)2Mineralsilicate
- KimrobinsoniteTa(OH)3(O,CO3)Mineraloxide
- Kimuraite-(Y)CaY2(CO3)4 · 6H2OMineralcarbonate
- KimzeyiteCa3Zr2(SiAl2)O12Mineralsilicate
- KingiteAl3(PO4)2F2(OH) · 7H2OMineralphosphate
- KingsgateiteZrMo6+2O7(OH)2 · 2H2OMineraloxide
- KingsmountiteCa3MnFe2+Al4(PO4)6(OH)4 · 12H2OMineralphosphate
- KingstoniteRh3S4Mineralsulfide
- KinichiliteMg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2OMineraloxide
- KinoiteCa2Cu2Si3O10 · 2H2OMineralsilicate
- KinoshitaliteBaMg3(Si2Al2O10)(OH)2Mineralsilicate
- KintoreitePbFe3+3(PO4)(PO3OH)(OH)6Mineralphosphate
- KipushiteCu6(PO4)2(OH)6 · H2OMineralphosphate
- Kircherite[Na5Ca2K](Si6Al6O24)(SO4)2 · 0.33H2OMineralsilicate
- KirchhoffiteCsBSi2O6Mineralsilicate
- KirkiitePb10Bi3As3S19Mineralsulfide
- Kirovite(Fe,Mg)SO4·7H2OVariety—
- KirschsteiniteCaFe2+(SiO4)Mineralsilicate
- KiryuiteNaMnAl(PO4)F3Mineralphosphate
- KishoniteVH2Mineralnative
- KitagohaitePt7CuMineralnative
- KitkaiteNiTeSeMineralsulfide
- KittatinnyiteCa2Mn2+Mn3+2(SiO4)2(OH)4 · 9H2OMineralsilicate
- KladnoiteC6H4(CO)2NHMineral—
- KlajiteMnCu4(AsO4)2(AsO3OH)2 · 9H2OMineralphosphate
- KlaprothiteNa6(UO2)(SO4)4(H2O)4Mineralsulfate
- KlebelsbergiteSb3+4O4(SO4)(OH)2Mineralsulfate
- KleberiteFe3+Ti6O11(OH)5Mineraloxide
- KleemaniteZnAl2(PO4)2(OH)2 · 3H2OMineralphosphate
- Kleinite(Hg2N)(Cl,SO4) · nH2OMineralhalide
- Klöchite(Fe2+Fe3+)◻2KZn3(Si12O30)Mineralsilicate
- KlockmanniteCu5.2Se6Mineralsulfide
- KlyuchevskiteK3Cu3Fe3+O2(SO4)4Mineralsulfate
- KnasibfiteK3Na4(SiF6)3(BF4)Mineralhalide
- Knebelitefrom (Fe1.5Mn0.5)2SiO4 to (Mn1.5Fe0.5)2SiO4Variety—
- Knopite(Ca,Ce,Na)(Ti,Fe)O3Variety—
- KnorringiteMg3Cr2(SiO4)3Mineralsilicate
- KnoxvilliteMgFe3+4(SO4)6(OH)2·20H2OVariety—
- KoashviteNa6CaTiSi6O18Mineralsilicate
- Kobeite-(Y)(Y,U)(Ti,Nb)2(O,OH)6 (?)Mineraloxide
- KobellitePb11(Cu,Fe)2(Bi,Sb)15S35Mineralsulfide
- KobokoboiteAl6(PO4)4(OH)6 · 11H2OMineralphosphate
- KobyasheviteCu5(SO4)2(OH)6 · 4H2OMineralsulfate
- KochiteCa2MnZrNa3Ti(Si2O7)2(OF)F2Mineralsilicate
- KochkaritePbBi4Te7Mineralsulfide
- KochsándoriteCaAl2(CO3)2(OH)4 · H2OMineralcarbonate
- KodamaiteNa3(Ca5Na)Si16O36(OH)4F2 · (14-x)H2O (x ≈ 5)Mineralsilicate
- KoechliniteBi2MoO6Mineraloxide
- KoeneniteNa4Mg9Al4Cl12(OH)22Mineralhalide
- KöflachiteMineral—
- KogarkoiteNa3(SO4)FMineralsulfate
- KojonenitePd7-xSnTe2 (0.3 ≤ x ≤ 0.8)Mineralsulfide
- KokchetaviteK(AlSi3O8)Mineralsilicate
- KokinositeNa2Ca2(V10O28) · 24H2OMineraloxide
- KoksharoviteCaMg2Fe3+4(VO4)6Mineralphosphate
- Koktaite(NH4)2Ca(SO4)2 · H2OMineralsulfate
- KolaritePbTeCl2Mineralhalide
- KolbeckiteSc(PO4) · 2H2OMineralphosphate
- KolfaniteCa2Fe3+3O2(AsO4)3 · 2H2OMineralphosphate
- KoliciteZn4Mn2+7(AsO4)2(SiO4)2(OH)8Mineralphosphate
- KolitschitePb[Zn0.5,◻0.5]Fe3(AsO4)2(OH)6Mineralphosphate
- Kollerite(NH4)2Fe3+(SO3)2(OH) · H2OMineraloxide
- Kolovratite(Ni,Zn)x(VO4) · nH2OMineralphosphate
- Kolskyite(Ca◻)Ti2Na2Ti2(Si2O7)2O4(H2O)7Mineralsilicate
- KolweziteCuCo(CO3)(OH)2Mineralcarbonate
- KolymiteCu7Hg6Mineralnative
- Komarovite(Ca,Sr,Na)6-x(Nb,Ti)6(Si4O12)(O,OH,F)16 · nH2OMineralsilicate
- KombatitePb14O9(VO4)2Cl4Mineralphosphate
- KomkoviteBaZrSi3O9 · 3H2OMineralsilicate
- KonderitePbCu3Rh8S16Mineralsulfide
- Kongsbergite(Ag,Hg)Variety—
- KoninckiteFe3+(PO4) · 3H2OMineralphosphate
- KononoviteNaMg(SO4)FMineralphosphate
- KonyaiteNa2Mg(SO4)2 · 5H2OMineralsulfate
- KonzettiteCaMn4+Te6+O6Mineraloxide
- KopernikiteK(Ti7Cr3+)O16Mineraloxide
- KopyloviteK2Ti(Si3O9)Mineralsilicate
- KoragoiteMn2+2Mn3+Nb2(Nb,Ta)3W2O20Mineraloxide
- KoritnigiteZn(AsO3OH) · H2OMineralphosphate
- KorneliteFe3+2(SO4)3 · 7H2O (?)Mineralsulfate
- Kornerupine(Mg,Fe2+,Al,◻)10(Si,Al,B)5O21(OH,F)2Mineralsilicate
- Korobitsynite(Na,◻)4Ti2(Si4O12)(O,OH)2 · 4H2OMineralsilicate
- KorshunovskiteMg2Cl(OH)3 · 4H2OMineralhalide
- KoryakiteNaKMg2Al2(SO4)6Mineralsulfate
- KorzhinskiteCaB2O4 · 0.5H2OMineral—
- KosmochlorNaCr3+Si2O6Mineralsilicate
- KosnariteKZr2(PO4)3Mineralphosphate
- KostoviteAuCuTe4Mineralsulfide
- KostyleviteK2ZrSi3O9 · H2OMineralsilicate
- KotoiteMg3(BO3)2Mineral—
- KottenheimiteCa3Si(SO4)2(OH)6 · 12H2OMineralsulfate
- KöttigiteZn3(AsO4)2 · 8H2OMineralphosphate
- KotulskitePd(Te,Bi)2-x (x ≈ 0.4)Mineralsulfide
- KoutekiteCu5As2Mineralsulfide
- KovdorskiteMg2(PO4)(OH) · 3H2OMineralphosphate
- KozłowskiiteCa4Fe2+Sn3(Si2O7)2(Si2O6OH)2Mineralsilicate
- Kozoite-(La)La(CO3)(OH)Mineralcarbonate
- Kozoite-(Nd)Nd(CO3)(OH)Mineralcarbonate
- KozyrevskiteCu4O(AsO4)2Mineralphosphate
- KraissliteZn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16Mineralphosphate
- KrálíkiteBaCl2·2H2OMineralhalide
- KrasheninnikoviteKNa2CaMg(SO4)3FMineralsulfate
- KrásnoiteCa3Al7.7Si3P4O22.9(OH)13.3F2 · 8H2OMineralphosphate
- KrasnoshteiniteAl8[B2O4(OH)2](OH)16Cl4 · 7H2OMineral—
- KrasnoviteBa(Al,Mg)(PO4,CO3)(OH)2 · H2OMineralphosphate
- KratochvíliteC13H10Mineral—
- KrausiteKFe3+(SO4)2 · H2OMineralsulfate
- KrauskopfiteBaSi2O5 · 3H2OMineralsilicate
- KrautiteMn(AsO3OH) · H2OMineralphosphate
- KravtsovitePdAg2SMineralsulfide
- KreiteriteCsLi2Fe3+Si4O10F2Mineralsilicate
- Kreittonite(Zn,Fe)Al2O4Variety—
- Kremersite(NH4)2Fe3+Cl5 · H2OMineralhalide
- KrenneriteAu3AgTe8Mineralsulfide
- KrettnichitePbMn3+2(VO4)2(OH)2Mineralphosphate
- KribergiteAl5(PO4)3(SO4)(OH)4 · 4H2OMineralphosphate
- KrieseliteAl2(GeO4)F2Mineralsilicate
- KrinoviteNa4[Mg8Cr3+4]O4[Si12O36]Mineralsilicate
- KristianseniteCa4Sc2Sn2(Si2O7)2(Si2O6OH)2Mineralsilicate
- KristjániteKNa2H(SO4)2Mineralsulfate
- KrivovichevitePb3Al(OH)6(SO4)(OH)Mineralsulfate
- KröhnkiteNa2Cu(SO4)2 · 2H2OMineralsulfate
- KrotiteCaAl2O4Mineraloxide
- KroupaiteKPb0.5[(UO2)8O4(OH)10] · 10H2OMineraloxide
- KrügeriteBaCa6(SiO4)2[(P0.5S0.5)O4]2FMineralphosphate
- KruijeniteCa4Al4(SO4)F2(OH)16 · 2H2OMineralhalide
- KrupičkaiteCu6[AsO3(OH)]6 · 8H2OMineralphosphate
- KrupkaitePbCuBi3S6Mineralsulfide
- KruťaiteCuSe2Mineralsulfide
- KrutoviteNiAs2Mineralsulfide
- Kryachkoite(Al,Cu)6(Fe,Cu)Mineralnative
- KryzaiteNa4(MgCr)(PO4)3Mineralphosphate
- Kryzhanovskite(Fe3+,Mn2+)3(PO4)2(OH,H2O)3Mineralphosphate
- KtenasiteZnCu4(SO4)2(OH)6 · 6H2OMineralsulfate
- Kuannersuite-(Ce)NaCeBa3(PO4)3F0.5Cl0.5Mineralphosphate
- Kudriavite(Cd,Pb)Bi2S4Mineralsulfide
- KudryavtsevaiteNa3MgFe3+Ti4O12Mineraloxide
- KufahritePtPbMineralnative
- Kukharenkoite-(Ce)Ba2Ce(CO3)3FMineralcarbonate
- Kukharenkoite-(La)Ba2La(CO3)3FMineralcarbonate
- KukisvumiteNa6ZnTi4O4(SiO3)8 · 4H2OMineralsilicate
- KuksitePb3Zn3TeO6(PO4)2Mineralphosphate
- KulaniteBaFe2+2Al2(PO4)3(OH)3Mineralphosphate
- KuliginiteFe3Mg(OH)6Cl2Mineralhalide
- Kuliokite-(Y)Y4Al(SiO4)2(OH)2F5Mineralsilicate
- KulkeiteNa0.3Mg8Al(Si,Al)8O20(OH)10Mineralsilicate
- KulleruditeNiSe2Mineralsulfide
- KumdykoliteNa(AlSi3O8)Mineralsilicate
- KummeriteMn2+Fe3+Al(PO4)2(OH)2 · 8H2OMineralphosphate
- KumtyubeiteCa5(SiO4)2F2Mineralsilicate
- KunatiteCuFe3+2(PO4)2(OH)2 · 4H2OMineralphosphate
- KunziteLiAlSi2O6Variety—
- KupčíkiteCu3.4Fe0.6Bi5S10Mineralsulfide
- KupletskiteK2NaMn2+7Ti2(Si4O12)2O2(OH)4FMineralsilicate
- Kupletskite-(Cs)Cs2NaMn2+7Ti2(Si4O12)2O2(OH)4FMineralsilicate
- KuramiteCu3SnS4Mineralsulfide
- KuranakhitePbMn4+Te6+O6Mineraloxide
- KuratiteCa2(Fe2+5Ti)O2[Si4Al2O18]Mineralsilicate
- KurchatoviteCaMgB2O5Mineral—
- KurgantaiteCaSrB5O9Cl · H2OMineral—
- KuriliteAg8Te3SeMineralsulfide
- KurnakoviteMgB3O3(OH)5 · 5H2OMineral—
- KurumsakiteZn8Al8V5+2Si5O35 · 27H2O (?)Mineralsilicate
- KusachiiteCu2+Bi3+2O4Mineraloxide
- KushiroiteCaAlAlSiO6Mineralsilicate
- KüsteliteAgVariety—
- KutinaiteAg6Cu14As7Mineralsulfide
- KutnohoriteCaMn2+(CO3)2Mineralcarbonate
- KuvaeviteIr5Ni10S16Mineralsulfide
- KuzeliteCa4Al2(OH)12(SO4) · 6H2OMineraloxide
- Kuzmenkoite-MnK2MnTi4(Si4O12)2(OH)4 · 5-6H2OMineralsilicate
- Kuzmenkoite-ZnK2ZnTi4(Si4O12)2(OH)4 · 6-8H2OMineralsilicate
- KuzminiteHgBrMineralhalide
- KuznetsoviteHg1+2Hg2+(AsO4)ClMineralphosphate
- KvačekiteNiSbSeMineralsulfide
- KvanefjelditeNa4CaSi6O14(OH)2Mineralsilicate
- KyaniteAl2OSiO4Mineralsilicate
- KyanoxaliteNa7(Al5-6Si6-7O24)(C2O4)0.5-1.0 · 5H2OMineralsilicate
- KyawthuiteBi3+Sb5+O4Mineraloxide
- KyrgyzstaniteZnAl4(SO4)(OH)12 · 3H2OMineralsulfate
- KyzylkumiteTi2V3+O5(OH)Mineraloxide