List of minerals recognized by the International Mineralogical Association (K)

Ka


(IUPAC: manganese(II) dialuminium dihydro diphosphate octahydrate) (IUPAC: diammonium zinc disulfate hexahydrate) (IUPAC: potassium titanium oxoarsenate) (IUPAC: tricalcium dialuminium dodecahydroxide)
 * 1) Kaatialaite (IMA1982-021) 8.CC.10   (IUPAC: iron(III) tri(dihydroxoarsenate) trihydrate)
 * 2) Kabalovite (IMA2021-117)
 * 3) Kadyrelite (IMA1986-042) 3.DD.05   (IUPAC: tri(dimercury) oxo hydrotriborate)
 * 4) Kaersutite [O-dominant amphibole: IMA2012 s.p., IMA1997 s.p.] 9.DE.15
 * 5) Kahlenbergite (magnetoferrite: IMA2018-158) 4.0 [no] [no]
 * 6) Kahlerite (Y: 1953) 8.EB.05   (IUPAC: iron(II) diuranyl diarsenate dodecahydrate)
 * 7) Kainite (Y: 1865) 7.DF.10   (IUPAC: potassium magnesium chloro sulfate trihydrate)
 * 8) Kainosite-(Y) (IMA1987 s.p., 1886) 9.CF.10   (IUPAC: dicalcium diyttrium tetra(trioxysilicate) carbonate monohydrate)
 * 9) Kainotropite (IMA2015-053) 8.0 [no] [no] (IUPAC: tetracopper iron(III) dioxide heptaoxodivanadate tetraoxovanadate)
 * 10) Kaitianite (IMA2017-078a) 4.0 [no] [no]
 * 11) Kalborsite (zeolitic tectosilicate: IMA1979-033) 9.GA.15
 * 12) Kalgoorlieite (IMA2015-119) 2.0 [no] [no] (IUPAC: diarsenic tritelluride)
 * 13) Kaliborite (Y: 1889) 6.FB.10
 * 14) Kalicinite (Y: 1868) 5.AA.20   (IUPAC: potassium hydrogen carbonate)
 * 15) Kalifersite (IMA1996-007) 9.EE.25  [no] [no]
 * 16) Kalininite (spinel, linnaeite: IMA1984-028) 2.DA.05   (IUPAC: zinc dichromium tetrasulfide)
 * 17) KaliniteQ (Y: 1868) 7.CC.15   (IUPAC: potassium aluminium disulfate undecahydrate) Note: possibly alum-(K).
 * 18) Kaliochalcite (tsumcorite: IMA2013-037) 7.0 [no] [no] (IUPAC: potassium dicopper disulfate [(hydro)(water)])
 * 19) Kaliophilite (feldspathoid, nepheline: 1887) 9.FA.05   (IUPAC: potassium aluminium tetraoxysilicate)
 * 20) Kalistrontite (palmierite: IMA1967 s.p., 1962) 7.AD.40   (IUPAC: dipotassium strontium disulfate)
 * 21) Kalithallite (IMA2017-044) 3.0 [no] [no] (IUPAC: tripotassium hexachlorothallate(III) dihydrate)
 * 22) Kalsilite (feldspathoid, nepheline: 1942) 9.FA.05   (IUPAC: potassium aluminium tetraoxysilicate)
 * 23) Kalungaite (ullmannite: IMA2004-047) 2.EB.25   (IUPAC: palladium arsenide selenide)
 * 24) (Kamacite: iron variety, 1.AE.05, α-(iron,nickel) alloy)
 * 25) Kamaishilite (IMA1980-052) 9.FB.10   (IUPAC: dicalcium dihydro hexaoxy dialuminosilicate)
 * 26) Kamarizaite (IMA2008-017) 8.0  [no] (IUPAC: triiron(III) trihydro diarsenate trihydrate)
 * 27) Kambaldaite (IMA1982-098) 5.DA.20   (IUPAC: sodium tetranickel trihydro tricarbonate trihydrate)
 * 28) Kamchatkite (IMA1987-018) 7.BC.35   (IUPAC: potassium tricopper chloro oxodisulfate)
 * 29) Kamenevite (IMA2017-021) 9.DG. [no] [no] (IUPAC: potassium titanium nonaoxytrisilicate monohydrate)
 * 30) Kamiokite (nolanite: IMA1975-003) 4.CB.40   (IUPAC: diiron(II) trimolybdenum(IV) octaoxide)
 * 31) Kamitugaite (IMA1983-030) 8.ED.15   (PbAl(UO2)5(PO4)2(OH)9*9.5H2O)
 * 32) Kamotoite-(Y) (IMA1985-051) 5.EA.30   (IUPAC: diyttrium tetrauranyl tetraoxo tricarbonate tetradecahydrate)
 * 33) Kampelite (IMA2016-084) 8.0 [no] [no]
 * 34) Kampfite (IMA2000-003) 9.EG.20
 * 35) Kamphaugite-(Y) (IMA1987-043) 5.DC.10   (IUPAC: calcium yttrium hydro dicarbonate monohydrate)
 * 36) Kanemite (IMA1971-050) 9.EF.25   (IUPAC: hydrogen sodium pentaoxydisilicate trihydrate)
 * 37) Kangite (bixbyite: IMA2011-092) 4.0 [no] [no]
 * 38) Kangjinlaite (silicide: IMA2019-112b) [no] [no] (IUPAC: undecatitanium decasilicide)
 * 39) Kaňkite (IMA1975-005) 8.CE.60   (IUPAC: diiron(III) diarsenate heptahydrate)
 * 40) Kannanite (ardennite: IMA2015-100) 9.BJ. [no] [no]
 * 41) Kanoite (pyroxene: IMA1977-020) 9.DA.10   (IUPAC: manganese magnesium hexaoxydisilicate)
 * 42) Kanonaite (andalusite: IMA1976-047) 9.AF.10   (IUPAC: manganese(III) aluminium oxy tetraoxysilicate)
 * 43) Kanonerovite (IMA1997-016) 8.FC.30   (IUPAC: trisodium manganese decaoxotriphosphate dodecahydrate)
 * 44) Kaolinite (kaolinite: IMA1980 s.p., old) 9.ED.05   (IUPAC: aluminium pentaoxydisilicate tetrahydroxyl)
 * 45) Kapellasite (atacamite: IMA2005-009) 3.DA.10c  [no] (IUPAC: tricopper zinc hexahydroxide dichloride)
 * 46) Kapitsaite-(Y) (hyalotekite: IMA1998-057) 9.CH.05  [no] (Ba4Y2Si8B4O28F)
 * 47) Kapundaite (IMA2009-047) 8.0 [no] [no] (IUPAC: sodium calcium tetrairon(III) trihydro tetraphosphate pentahydrate)
 * 48) Kapustinite (lovozerite: IMA2003-018) 9.CJ.15a
 * 49) Karasugite (IMA1993-013) 3.CB.30   (IUPAC: strontium calcium heptafluoroaluminate)
 * 50) Karchevskyite (hydrotalcite: IMA2005-015a) 5.DA.
 * 51) Karelianite (corundum: IMA1967 s.p., 1963) 4.CB.05   (IUPAC: divanadium trioxide)
 * 52) Karenwebberite (olivine: IMA2011-015) 8.AB.10 [no] [no] (IUPAC: sodium (iron(II),manganese(II)) phosphate)
 * 53) Karibibite (IMA1973-007) 4.JA.15   (IUPAC: diiron(III) hydro tetra(dioxoarsenate(III)) pentaoxodiarsenate(III))
 * 54) Karlditmarite (IMA2021-003) [no] [no]
 * 55) Karlite (IMA1980-030) 6.AB.25
 * 56) Karnasurtite-(Ce)Q (IMA1987 s.p., 1959) 9.BE.70
 * 57) Karpenkoite (volborthite: IMA2014-092) 8.0 [no] [no] (IUPAC: tricobalt dihydro heptaoxodivanadate dihydrate)
 * 58) KarpinskiteQ (corrensite: 1957) 9.EC.60   Note: possibly a Ni-rich antigorite or a Ni-rich interstratification of a talc-group mineral and a chlorite-group mineral.
 * 59) Karpovite (IMA2013-040) 7.0 [no] [no] (IUPAC: dithallium vanadium oxodisulfate water)
 * 60) Karupmøllerite-Ca (labuntsovite: IMA2001-028) 9.CE.30c  [no]
 * 61) Kasatkinite (IMA2011-045) 9.0 [no]  (Ba2Ca8B5Si8O32(OH)3·6H2O)
 * 62) Kashinite (IMA1982-036) 2.DB.15   (IUPAC: diiridium trisulfide)
 * 63) Kaskasite (valleriite: IMA2013-025) 4.0 [no]
 * 64) Kasolite (IMA1980 s.p., 1921) 9.AK.15   (IUPAC: lead uranyl tetrasilicate monohydrate)
 * 65) Kassite (IMA1968 s.p., 1965) 4.DH.10   (IUPAC: calcium dititanium dihydro tetraoxide)
 * 66) Kastningite (stewardite, laueite: IMA1997-033) 8.DC.30
 * 1) Katayamalite (baratovite: IMA1982-004) 9.CJ.25  [no]
 * 2) Katerinopoulosite (picromerite: IMA2017-004) 7.0 [no] [no]
 * 1) Katiarsite (IMA2014-025) 8.0 [no] [no]
 * 1) Katoite (garnet: IMA1982-080a) 9.AD.25
 * 1) Katophorite [Na-Ca-amphibole: IMA2013-140, IMA2012 s.p., magnesiokatophorite (IMA1997 s.p.), katoforit (1894)] 9.DE.20
 * 2) Katoptrite (Y: 1917) 9.AE.40   (IUPAC: tridecamanganese(II) tetraluminium diantimony(V) icosaoxy ditetraoxysilicate)
 * 3) Katsarosite (humboldtine: IMA2020-014) [no] [no]
 * 4) Kawazulite (tetradymite: IMA1968-014) 2.DC.05   (IUPAC: dibismuth ditelluride selenide)
 * 5) Kayrobertsonite (IMA2015-029) 8.0 [no] [no] (IUPAC: manganese dialuminium dihydro diphosphate hexahydrate)
 * 6) Kayupovaite (IMA2022-045)
 * 7) Kazakhstanite (IMA1988-044) 8.CB.45
 * 8) Kazakovite (lovozerite: IMA1973-061) 9.CJ.15a   (IUPAC: hexasodium manganese(II) titanium octadecaoxyhexasilicate)
 * 9) Kazanskyite (seidozerite, lamprophyllite: IMA2011-007) 9.B?. [no]
 * 10) Kaznakhtite (hydrotalcite: IMA2021-056) [no] [no] [no]

Ke – Kl
(IUPAC: lead triiron(III) hexahydro phosphate hydroxophosphate) (IUPAC: hexacopper hexahydro diphosphate monohydrate) (IUPAC: caesium bismuth hexaoxydisilicate) (Pb10Bi3As3S19) (IUPAC: calcium iron(II) tetraoxysilicate) (IUPAC: vanadium dihydride) (IUPAC: heptaplatinum copper alloy) (IUPAC: nickel telluride selenide) (IUPAC: dicalcium dimanganese manganese di(tetraoxysilicate) tetrahydroxyl nonahydrate)
 * 1) Keckite (whiteite: IMA1977-028) 8.DH.15
 * 2) Kegelite (IMA1974-042 Rd) 9.EC.80
 * 3) Kegginite (polyoxometalate: IMA2015-114) 8.0 [no] [no]
 * 4) Keilite (galena, rocksalt: IMA2001-053) 2.CD.10   (IUPAC: iron sulfide)
 * 5) Keithconnite (IMA1978-032) 2.BC.20   (IUPAC: icosalead heptatelluride)
 * 6) Keiviite (thortveitite) 9.BC.05 (IUPAC: diREE heptaoxodisilicate)
 * 7) Keiviite-(Y) (IMA1984-054) 9.BC.05
 * 8) Keiviite-(Yb) (IMA1982-065) 9.BC.05
 * 9) Keldyshite (IMA1975-034) 9.BC.10   (IUPAC: disodium zirconium heptaoxodisilicate)
 * 10) Kellyite (serpentine: IMA1974-002) 9.ED.15
 * 11) Kelyanite (IMA1981-013) 3.DD.60   (IUPAC: dodecamercury antimony hexaoxide bromide dichloride)
 * 12) Kemmlitzite (alunite, beudandite: IMA1967-021) 8.BL.05   (IUPAC: strontium trialuminium arsenate hexahydro sulfate)
 * 13) Kempite (atacamite: 1924) 3.DA.10a   (IUPAC: dimanganese(II) chloride trihydroxide)
 * 14) Kenhsuite (IMA1996-026) 2.FC.15b   (IUPAC: trimercury dichloro disulfide)
 * 15) Kenngottite (IMA2018-063a) 8.0 [no] [no]
 * 16) Kenoargentotennantite-(Fe) (tetrahedrite: IMA2020-062) 2.0 [no] [no]
 * 17) Kenoargentotetrahedrite
 * 18) Kenoargentotetrahedrite-(Fe) (tetrahedrite: IMA2018-K) 2.0 [no] [no]
 * 19) Kenoargentotetrahedrite-(Zn) (tetrahedrite: IMA2020-075) 2.0 [no] [no]
 * 20) Kenoplumbomicrolite (pyrochlore: IMA2015-007a) 4.DH. [no] [no]
 * 21) Kenorozhdestvenskayaite-(Fe) (IMA2022-001)
 * 22) Kenotobermorite (tobermorite: IMA2014 s.p.) 9.DG. [no] [no]
 * 23) Kentbrooksite (eudialyte: IMA1996-023) 9.CO.10  [no]
 * 24) Kentrolite (Y: 1881) 9.BE.80   (IUPAC: dilead dimanganese(III) dioxy(heptaoxodisilicate)
 * 25) Kenyaite (IMA1967-018) 9.HA.10
 * 26) Keplerite (whitlockite: IMA2019-108) 8.0 [no] [no]
 * 27) Kerimasite (garnet: IMA2009-029) 9.AD.25 [no]  (IUPAC: tricalcium dizirconium tetraoxysilicate di(tetraoxo iron(II)))
 * 28) Kermesite (Y: 1832) 2.FD.05   (IUPAC: diantimony oxodisulfide)
 * 29) Kernite (Y: 1927) 6.DB.05
 * 30) (Kerolite (saponite, smectite: 1823) 9.E?.  [no] [no])
 * 31) Kernowite (IMA2020-053) 8.DF. [no] [no]
 * 32) Kesebolite-(Ce) (IMA2019-097) 9.0 [no] [no]
 * 33) Kësterite (stannite: 1958) 2.CB.15a   (IUPAC: dicopper zinc tin tetrasulfide)
 * 34) Kettnerite (bismutite: 1956) 5.BE.30   (IUPAC: calcium bismuth fluoro oxocarbonate)
 * 35) Keutschite (stannite: IMA2014-038) 2.0 [no] [no] (IUPAC: dicopper silver arsenide tetrasulfide)
 * 36) Keyite (alluaudite: IMA1975-002) 8.CA.50   ((☐0.5Cu0.5)CuCdZn2(AsO4)3·H2O)
 * 37) Keystoneite (zemannite: IMA1987-049) 4.JM.05   (IUPAC: magnesium dinickel diiron(III) hexa(trioxotellurate(IV)) nonahydrate)
 * 38) Khademite (IMA1973-028 Rd) 7.DB.10   (IUPAC: aluminium fluoro sulfate pentahydrate)
 * 39) Khaidarkanite (cyanotrichite: IMA1998-013) 3.DA.45  [no] (IUPAC: tetracopper trialuminium tetradecahydroxide trifluoride dihydrate)
 * 40) Khamrabaevite (carbide, rocksalt: IMA1983-059) 1.BA.20   (IUPAC: titanium carbide bearing vanadium and iron)
 * 41) Khanneshite (burbankite: IMA1981-025) 5.AC.30
 * 42) Kharaelakhite (pentlandite: IMA1983-080) 2.BB.15   ((Cu,Pt,Pb,Fe,Ni)9S8)
 * 43) Khatyrkite (khatyrkite: IMA1983-085) 1.AA.15   (IUPAC: copper dialuminium alloy)
 * 44) Khesinite (sapphirine: IMA2014-033) 9.D?. [no] [no]
 * 45) Khibinskite (IMA1973-014) 9.BC.10   (IUPAC: dipotassium zirconium heptaoxodisilicate)
 * 46) Khinite (tellurium oxysalt: IMA1978-035) 4.FD.30   (IUPAC: tricopper(II) lead dihydro tellurium(VI) hexaoxide)
 * 47) Khmaralite (sapphirine: IMA1998-027) 9.DH.50  [no]
 * 48) Khomyakovite (eudialyte: IMA1998-042) 9.CO.10  [no]
 * 49) Khorixasite (descloizite: IMA2016-048) 8.0 [no] [no]
 * 50) Khrenovite (alluaudite: IMA2017-105) 8.0 [no] [no] (Na3(Fe3+)2(AsO4)3)
 * 51) Khristovite-(Ce) (epidote, dollaseite: IMA1991-055) 9.BG.05  [no] (IUPAC: calcium cerium (magnesium aluminium manganese(II)) heptaoxodisilicate tetraoxysilicate fluoride hydroxyl)
 * 52) Khurayyimite (IMA2018-140) 9.B?. [no] [no]
 * 53) Khvorovite (hyalotekite: IMA2014-050) 9.C?. [no] [no]
 * 54) Kiddcreekite (IMA1982-106) 2.CB.35a   (IUPAC: hexacopper tungsten tin octasulfide)
 * 55) Kidwellite (IMA1974-024) 8.DK.20   (IUPAC: sodium nonairon(III) undecahydro hexaphosphate trihydrate)
 * 56) Kieftite (skutterudite: IMA1991-052) 2.EC.05   (IUPAC: cobalt triantimonide)
 * 57) Kieserite (kieserite: IMA1967 s.p., 1861) 7.CB.05   (IUPAC: magnesium sulfate monohydrate)
 * 58) Kihlmanite-(Ce) (tundrite: IMA2012-081) 9.A?. [no] [no] (IUPAC: dicerium titanium dioxium tetraoxosilicate hydrogencarbonate (water))
 * 59) Kilchoanite (Y: 1961) 9.BJ.45   (IUPAC: hexacalcium tetraoxysilicate decaoxytrisilicate)
 * 60) Killalaite (IMA1973-033) 9.BE.85   (Ca6.4[H0.6Si2O7]2(OH)2)
 * 61) Kimrobinsonite (IMA1983-023) 4.FG.15   (IUPAC: thallium trihydroxide (oxo,carbonate))
 * 62) Kimuraite-(Y) (tengerite: IMA1984-073) 5.CC.15   (IUPAC: calcium diyttrium tetracarbonate hexahydrate)
 * 63) Kimzeyite (garnet: IMA1967 s.p., 1961) 9.AD.25
 * 64) Kingite (Y: 1957) 8.DC.47   (IUPAC: trialuminium difluoro hydro diphosphate heptahydrate)
 * 65) Kingsgateite (IMA2019-048) 7.0 [no] [no]
 * 66) Kingsmountite (calcioferrite: IMA1978-041) 8.DH.25   (IUPAC: tetracalcium iron(II) tetraluminium tetrahydro hexaphosphate dodecahydrate)
 * 67) Kingstonite (IMA1993-046) 2.DA.25   (IUPAC: trirhodium tetrasulfide)
 * 68) Kinichilite (zemannite: IMA1979-031) 4.JM.05
 * 69) Kinoite (IMA1969-037) 9.BH.10   (IUPAC: dicalcium dicopper decaoxytrisilicate dihydrate)
 * 70) Kinoshitalite (mica: IMA1973-011) 9.EC.35   (IUPAC: barium trimagnesium (dialuminodecaoxydisilicate) dihydroxyl)
 * 71) Kintoreite (alunite, crandallite: IMA1992-045) 8.BL.10
 * 1) Kipushite (IMA1983-046) 8.DA.35
 * 1) Kircherite (cancrinite: IMA2009-084) 9.FB.05 [no] [no]
 * 2) Kirchhoffite (zeolitic tectosilicate: IMA2009-094) 9.GB.05 [no]
 * 1) Kirkiite (IMA1984-030) 2.JB.30b
 * 1) Kirschsteinite (olivine: 1957) 9.AC.05
 * 1) Kiryuite (IMA2021-041) [no] [no] [no]
 * 2) Kishonite (hydride: IMA2020-023) 1.0 [no] [no]
 * 1) Kitagohaite (alloy: IMA2013-114) 1.0 [no]
 * 1) Kitkaite (IMA1968 s.p., 1965) 2.EA.20
 * 1) Kittatinnyite (IMA1982-083) 9.AG.35
 * 1) KladnoiteH (Y: 1942) 10.CA.25   (IUPAC: phthalimide)
 * 2) Klajite (IMA2010-004) 8.CE.30 [no] [no] (IUPAC: manganese tetracopper diarsenate dihydroxoarsenate nonahydrate)
 * 3) Klaprothite (IMA2015-087) 7.0 [no] [no] (IUPAC: hexasodium uranyl tetrasulfate tetrahydrate)
 * 4) Klebelsbergite (IMA1980 s.p., 1929 Rd) 7.BB.35   (IUPAC: tetraantimony(III) dihydro tetraoxosulfate)
 * 5) Kleberite (tivanite: IMA2012-023, 1960) 4.CB.25 [no] [no] (IUPAC: iron(III) hexatitanium pentahydro undecaoxide)
 * 6) Kleemanite (IMA1978-043) 8.DC.17   (IUPAC: zinc dialuminium dihydro diphosphate trihydrate)
 * 7) Kleinite (Y: 1905) 3.DD.35   ((Hg2N)(Cl,SO4)*nH2O)
 * 8) Klöchite (milarite: IMA2007-054) 9.CM.  [no]
 * 9) Klockmannite (Y: 1928) 2.CA.05b   (Cu5.2Se6)
 * 10) Klyuchevskite (IMA1987-027) 7.BC.45   (IUPAC: tripotassium tricopper iron(III) dioxotetrasulfate)

Kn – Ko
Note: might contain Zr as an essential constituent (P. Kartashov). (IUPAC: trisodium fluoro sulfate) ( (0.3 ≤ x ≤ 0.8)) (IUPAC: potassium (aluminium octaoxytrisilicate)) (Na2Ca2(V10O28)·24H2O) (IUPAC: calcium dimagnesium tetrairon(III) hexavanadate) (IUPAC: diammonium calcium disulfate monohydrate) (IUPAC: palladium tellurium dichloride) (IUPAC: scandium phosphate dihydrate) (IUPAC: dicalcium triiron(III) dioxotriarsenate dihydrate) Note: possibly arseniosiderite. (IUPAC: tetrazinc heptamanganese(II) diarsenate di(tetraoxysilicate) octahydroxyl) ((Ca,□)Na2Ti4(Si2O7)2O4(H2O)7) (IUPAC: di(copper,cobalt) dihydro carbonate) (IUPAC: heptacopper hexamercury amalgam) (IUPAC: tetradecalead tetrachloro nonaoxodivanadate) (IUPAC: barium zirconium nonaoxytrisilicate trihydrate) (IUPAC: lead tricopper octarhodium hexadecasulfide) (IUPAC: iron(III) phosphate trihydrate) (IUPAC: sodium magnesium fluoro sulfate) (IUPAC: disodium magnesium disulfate pentahydrate)
 * 1) Knasibfite (fluorosilicate: IMA2006-042) 3.CH.25   (IUPAC: tripotassium tetrasodium tri(hexafluorosilicate) tetrafluoroborate)
 * 2) Knorringite (garnet, garnet: IMA1968-010) 9.AD.25   (IUPAC: trimagnesium dichromium tri(tetraoxysilicate))
 * 3) Koashvite (lovozerite: IMA1973-026) 9.CJ.15c
 * 4) Kobeite-(Y) (IMA1987 s.p., 1950) 4.DG.05
 * 1) Kobellite (kobellite: 1841) 2.HB.10a   (Pb11(Cu,Fe)2(Bi,Sb)15S35)
 * 2) Kobokoboite (IMA2009-057) 8.0 [no]  (IUPAC: hexaaluminium hexahydro tetraphosphate undecahydrate)
 * 3) Kobyashevite (IMA2011-066) 7.0 [no] [no] (IUPAC: pentacopper hexahydro disulfate tetrahydrate)
 * 4) Kochite (seidozerite, rinkite: IMA2002-012) 9.BE.22  [no] (IUPAC: dicalcium manganese zirconium trisodium di(heptaoxodisilicate) (oxyfluoride) difluoride)
 * 5) Kochkarite (aleksite: IMA1988-030) 2.GC.40b   (IUPAC: lead tetrabismuth heptatelluride)
 * 6) Kochsándorite (dundasite: IMA2004-037) 5.DB.10   (IUPAC: calcium dialuminium tetrahydro dicarbonate monohydrate)
 * 7) Kodamaite (IMA2018-134) 9.0 [no] [no]
 * 8) Koechlinite (Y: 1914) 4.DE.15   (IUPAC: dibismuth molybdenum hexaoxide)
 * 9) Koenenite (Y: 1902) 3.BD.25   (IUPAC: tetrasodium nonamagnesium tetraluminium docosahydro dodecachloride)
 * 10) Kogarkoite (IMA1970-038) 7.BD.15
 * 1) Kojonenite (IMA2013-132) 2.0 [no] [no]
 * 1) Kokchetavite (dmisteinbergite: IMA2004-011) 9.FA.75
 * 1) Kokinosite (decavanadate: IMA2013-099) 4.0 [no]
 * 1) Koksharovite (howardevansite: IMA2012-092) 8.0 [no]
 * 1) Koktaite (Y: 1948) 7.CD.35
 * 1) Kolarite (IMA1983-081) 3.AA.45
 * 1) Kolbeckite (metavariscite: IMA1987 s.p., 1926) 8.CD.05
 * 1) KolfaniteQ (arseniosiderite: IMA1981-017) 8.DH.30
 * 1) Kolicite (IMA1978-076) 8.BE.60
 * 1) Kolitschite (alunite: IMA2008-063) 8.BM.10 [no] [no]
 * 2) Kollerite (sulfite: IMA2018-131) 4.0 [no] [no]
 * 3) KolovratiteQ (Y: 1922) 8.CB.50
 * 1) Kolskyite (seidozerite, murmanite: IMA2013-005) 9.B?. [no] [no]
 * 1) Kolwezite (malachite: IMA1979-017) 5.BA.10
 * 1) Kolymite (amalgam: IMA1979-046) 1.AD.10
 * 1) Komarovite (IMA1971-011) 9.CE.45
 * 2) Kombatite (IMA1985-056) 8.BO.20
 * 1) Komkovite (IMA1988-032) 9.DM.10
 * 1) Konderite (IMA1983-053) 2.DA.20
 * 1) Koninckite (Y: 1883) 8.CE.55
 * 1) Kononovite (titanite: IMA2013-116) 7.0 [no] [no]
 * 1) Konyaite (picromerite: IMA1981-003) 7.CC.80
 * 1) Koragoite (IMA1994-049) 4.DE.10  [no]
 * 2) Koritnigite (koritnigite: IMA1978-008) 8.CB.20   (IUPAC: zinc hydroxoarsenate monohydrate)
 * 3) Kornelite (Y: 1888) 7.CB.60   (IUPAC: diron(III) trisulfate heptahydrate(?))
 * 4) Kornerupine (Y: 1886) 9.BJ.50
 * 5) Korobitsynite (labuntsovite: IMA1998-019) 9.CE.30a  [no]
 * 6) Korshunovskite (IMA1980-083) 3.BD.15   (IUPAC: dimagnesium chloride trihydroxide tetrahydrate)
 * 7) Koryakite (IMA2018-013) 7.0 [no] [no]
 * 8) Korzhinskite (IMA1967 s.p., 1963) 6.GA.30   (IUPAC: dicalcium octaoxotetraborate monohydrate)
 * 9) Kosmochlor (pyroxene: IMA1988 s.p., 1897) 9.DA.25   (IUPAC: sodium chromium hexaoxydisilicate)
 * 10) Kosnarite (IMA1991-022) 8.AC.60   (IUPAC: potassium dizirconium triphosphate)
 * 11) Kostovite (calaverite: IMA1965-002) 2.EA.15   (IUPAC: copper gold tetratelluride)
 * 12) Kostylevite (IMA1982-053) 9.CJ.35   (IUPAC: dipotassium zirconium nonaoxytrisilicate monohydrate)
 * 13) Kotoite (Y: 1939) 6.AA.35   (IUPAC: trimagnesium di(trioxoborate))
 * 14) Kottenheimite (ettringite: IMA2011-038) 7.0 [no]  (IUPAC: tricalcium silicium hexahydro disulfate dodecahydrate)
 * 15) Köttigite (vivianite: 1850) 8.CE.40   (IUPAC: trizinc diarsenate octahydrate)
 * 16) Kotulskite (nickeline: IMA1967 s.p., 1963) 2.CC.05   ( (x ≈ 0.4))
 * 17) Koutekite (metalloid alloy: 1958) 2.AA.10d   (IUPAC: pentacopper diarsenide)
 * 18) Kovdorskite (IMA1979-066) 8.DC.22   (IUPAC: dimagnesium hydro phosphate trihydrate)
 * 19) Kozłowskiite (kristiansenite: IMA2021-081)
 * 20) Kozoite (ancylite) 5.DC.05 (IUPAC: REE hydro carbonate)
 * 21) Kozoite-(La) (IMA2002-054) 5.DC.05
 * 22) Kozoite-(Nd) (IMA1998-063) 5.DC.05  [no]
 * 23) Kozyrevskite (IMA2013-023) 8.0 [no] [no] (IUPAC: tetracopper oxodiarsenate)

Kr – Ky
(IUPAC: manganese(II) iron(III) aluminium dihydro diphosphate octahydrate) (IUPAC: copper diiron(III) dihydro diphosphate tetrahydrate) (Cu3.4Fe0.6Bi5S10) (IUPAC: tricopper tin tetrasulfide) (IUPAC: lead manganese(IV) tellurium(VI) hexaoxide) (IUPAC: calcium magnesium pentaoxodiborate)
 * 1) Kraisslite (hematolite: IMA1977-003) 8.BE.45
 * 2) Krasheninnikovite (IMA2011-044) 7.0 [no] [no] (IUPAC: potassium disodium calcium magnesium trisulfate fluoride)
 * 3) Krasnoshteinite (IMA2018-077) 6.0 [no] [no]
 * 4) Krásnoite (IMA2011-040) 8.DO.20 [no] [no]
 * 5) Krasnovite (IMA1991-020) 8.DK.35
 * 6) Kratochvílite (Y: 1938) 10.BA.25   (IUPAC: It is uncertain whether it is fluorene (C13H10) or anthracene (C14H10))
 * 7) Krausite (Y: 1931) 7.CC.05   (IUPAC: potassium iron(III) disulfate monohydrate)
 * 8) Krauskopfite (IMA1964-008) 9.DH.30   (IUPAC: barium pentaoxydisilicate trihydrate)
 * 9) Krautite (koritnigite: IMA1974-028) 8.CB.15   (IUPAC: manganese hydroxoarsenate monohydrate)
 * 10) Kravtsovite (IMA2016-092) 2.0 [no] [no] (IUPAC: palladium disilver sulfide)
 * 11) Kreiterite (IMA2019-041) 9.0 [no] [no]
 * 12) Kremersite (Y: 1853) 3.CJ.10   (IUPAC: diammonium iron(III) pentachloride monohydrate)
 * 13) Krennerite (calaverite: 1878) 2.EA.15   (IUPAC: trigold silver octatelluride)
 * 14) Krettnichite (tsumcorite: IMA1998-044) 8.CG.15   (IUPAC: lead dimanganese(III) dihydro divanadate)
 * 15) Kribergite (Y: 1945) 8.DC.52   (IUPAC: pentaluminium tetrahydro triphosphate sulfate tetrahydrate)
 * 16) Krieselite (topaz: IMA2000-043a) 9.AF.20   (IUPAC: dialuminium tetraoxogermanate dihydroxyl)
 * 17) Krinovite (sapphirine: IMA1967-016) 9.DH.40
 * 18) Kristiansenite (kristiansenite: IMA2000-051) 9.BC.30  [no] (IUPAC: dicalcium scandium tin heptaoxodisilicate hydroxyhexaoxydisilicate)
 * 19) Krivovichevite (IMA2004-053) 7.BC.75   (IUPAC: trilead aluminium hexahydroxide hydro sulfate)
 * 20) Kröhnkite (Y: 1879) 7.CC.30   (IUPAC: disodium copper disulfate dihydrate)
 * 21) Krotite (beryllonite: IMA2010-038) 4.BC. [no] [no] (IUPAC: calcium dialuminium tetraoxide)
 * 22) Kroupaite (IMA2017-031) 4.GA. [no] [no] (IUPAC: dipotassium lead [hexadecauranyl icosahydro octaoxide] icosahydrate)
 * 23) Kruijenite (IMA2018-057) 8.0 [no] [no] (IUPAC: tetracalctetralumium difluoro hexadecahydro sulfate dihydrate)
 * 24) Krupkaite (meneghinite: IMA1974-020) 2.HB.05a   (PbCuBi3S6)
 * 25) Kruťaite (pyrite: IMA1972-001) 2.EB.05a   (IUPAC: copper diselenide)
 * 26) Krutovite (pyrite: IMA1975-009) 2.EB.25   (IUPAC: nickel diarsenide)
 * 27) Kryachkoite (alloy: IMA2016-062) 1.0 [no] [no] ((Al,Cu)6(Fe,Cu))
 * 28) Kryzhanovskite (reddingite: 1950) 8.CC.05
 * 29) Ktenasite (ktenasite: 1950) 7.DD.20   Note: probably a mineral group.
 * 30) Kuannersuite-(Ce) (apatite: IMA2002-013) 8.BN.05   (IUPAC: disodium dicerium hexabarium fluoro chloro hexaphosphate)
 * 31) Kudriavite (IMA2003-011) 2.JA.05c   ((Cd,Pb)Bi2S4)
 * 32) Kudryavtsevaite (IMA2012-078) 4.0 [no] [no] (IUPAC: trisodium magnesium iron(III) tetratitanium dodecaoxide)
 * 33) Kufahrite (alloy: IMA2020-045) [no] [no] (IUPAC: platinum lead alloy)
 * 34) Kukharenkoite 5.BD.10 (IUPAC: dibarium REE fluoro tricarbonate)
 * 35) Kukharenkoite-(Ce) (IMA1995-040) 5.BD.10
 * 36) Kukharenkoite-(La) (IMA2002-019) 5.BD.10
 * 37) Kukisvumite (IMA1989-052) 9.DB.20   (IUPAC: hexasodium zinc tetratitanium tetraoxy octa(trioxysilicate) tetrahydrate)
 * 38) Kuksite (dugganite: IMA1989-018) 8.DL.20   (IUPAC: trilead trizinc hexaoxo tellurium(VI) diphosphate)
 * 39) Kulanite (bjarebyite: IMA1975-012) 8.BH.20   (IUPAC: barium diiron(II) dialuminium trihydro triphosphate)
 * 40) Kuliginite (IMA2016-049) 3.0 (IUPAC: triiron magnesium hexahydroxide dichloride)
 * 41) Kuliokite-(Y) (IMA1984-064) 9.AG.50   (IUPAC: tetrayttrium aluminium di(tetraoxysilicate) dihydroxyl pentafluoride)
 * 42) Kulkeite (corrensite: IMA1980-031) 9.EC.60   A 1:1 regular interstratification of a trioctahedral chlorite and talc.
 * 43) Kullerudite (marcasite: IMA1967 s.p., 1964) 2.EB.10a   (IUPAC: nickel diselenide)
 * 44) Kumdykolite (feldspar: IMA2007-049) 9.FA.45   (IUPAC: sodium (aluminium octaoxytrisilicate))
 * 45) Kummerite (laueite, laueite: IMA2015-036) 8.0 [no] [no]
 * 1) Kumtyubeite (humite: IMA2008-045) 9.AF.45  [no] (IUPAC: pentacalcium di(tetraoxysilicate) difluoride)
 * 2) Kunatite (arthurite: IMA2007-057) 8.DC.15  [no]
 * 1) Kupčíkite (cuprobismutite: IMA2001-017) 2.JA.10b
 * 1) Kupletskite (astrophyllite, kupletskite) 9.DC.05
 * 2) Kupletskite (Y: 1956) 9.DC.05
 * 3) Kupletskite-(Cs) (IMA1970-009) 9.DC.05
 * 4) Kuramite (stannite: IMA1979-013) 2.CB.15a
 * 1) Kuranakhite (tellurium oxysalt: IMA1974-030) 4.DM.25
 * 1) Kuratite (sapphirine: IMA2013-109) 9.D [no] [no]
 * 2) Kurchatovite (IMA1965-034) 6.BA.10
 * 1) Kurgantaite (hilgardite: IMA2000-B, 1952) 6.ED.05   (IUPAC: calcium strontium chloro nonaoxopentaborate monohydrate)
 * 2) Kurilite (IMA2009-080) 2.0   (IUPAC: octasilver tritelluride selenide)
 * 3) Kurnakovite (Y: 1940) 6.CA.20   (IUPAC: magnesium pentahydro trioxotriborate pentahydrate)
 * 4) KurumsakiteQ (montmorillonite, smectite: 1954) 9.EC.40
 * 5) Kusachiite (trippkeite: IMA1992-024) 4.JA.20   (IUPAC: copper(II) dibismuth(III) tetraoxide)
 * 6) Kushiroite (pyroxene: IMA2008-059) 9.DA.15  [no] (IUPAC: calcium aluminium aluminohexaoxysilicate)
 * 7) Kutinaite (metalloid alloy: IMA1969-034) 2.AA.25   (IUPAC: hexasilver tetradecacopper heptarsenide)
 * 8) Kutnohorite (dolomite: 1903) 5.AB.10   (IUPAC: calcium manganese(II) dicarbonate)
 * 9) Kuvaevite (IMA2020-043) 2.0 [no] [no]
 * 10) Kuzelite (hydrotalcite: IMA1996-053) 4.FL.15   (IUPAC: tetracalcium dialuminium dodecahydroxide sulfate hexahydrate)
 * 11) Kuzmenkoite (labuntsovite) 9.CE.30c
 * 12) Kuzmenkoite-Mn (IMA1998-058) 9.CE.30c  [no]
 * 13) Kuzmenkoite-Zn (IMA2001-037) 9.CE.30c  [no]
 * 14) Kuzminite (IMA1986-005) 3.AA.30   (IUPAC: dimercury di(bromide,chloride))
 * 15) Kuznetsovite (IMA1980-009) 8.BO.35   (IUPAC: (dimercury) mercury(II) arsenate chloride)
 * 16) Kvanefjeldite (IMA1982-079) 9.DP.30
 * 17) Kyanite (IMA1967 s.p., 1789) 9.AF.15   (IUPAC: dialuminium oxo(tetraoxysilicate))
 * 18) Kyanoxalite (cancrinite: IMA2008-041) 9.FB.05  [no]
 * 19) Kyawthuite (IMA2015-078) 4.0 [no] [no] (IUPAC: bismuth(III) antimony(V) tetraoxide)
 * 20) Kyrgyzstanite (chalcoalumite: IMA2004-024) 7.DD.75  [no] (IUPAC: zinc tetraluminium dodecahydro sulfate trihydrate)
 * 21) Kyzylkumite (IMA1980-081) 4.CB.75   (IUPAC: dititanium vanadium(III) hydro pentaoxide)