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Mineral Species sorted by the element K Potassium
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Mineral Chemistry

Potassium (K )

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Atomic Mass 39.0983
Atomic Number 19
Name Origins English, potash; Latin kalium.
Year Discovered 1807
Discovery Credits Sir Humphry Davy at London, UK.
Remarks Soft white metal, silvery when cut but reacts rapidly with oxygen and vigorously with water. Metal obtained from NaCl + KCl at 1100 K. Used in fertilizers, chemicals, and glass.

Diagnostic tests: 
In solution, a potassium will give a violet flame test color. This flame test will be contaminated with the colors of the other alkaline elements which are present in the sample. The test is best observed through a blue filter to suppress the yellow sodium flame.

References Emsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.
See Also WebElements
Naturally Occurring Isotopes
Symbol Isotope Mass Isotope Nuclide Number Isotope Number Natural Abundance Half-life Half-life Units Decay Mode Decay Mode MeV Decay Mode %
K 38.963707 39 19 93.2581%   Stable      
K 39.963999 40 19 0.0120% 1.25 x 109 Years beta -
EC		 1.32 95.0%
5.0%
K 40.961825 41 19 6.7302%   Stable      


Mineral Species sorted by the element K (Potassium )

Click Here for Mineral Species Sorted By Mineral Name
%K Mineral Name Chemical Formula MW
67.30% K Carobbiite   KF 58.10
52.45% K Sylvite   KCl 74.55
44.87% K Arcanite   K2SO4 174.26
40.27% K Tarapacaite   K2CrO4 194.19
39.05% K Kalicinite   KHCO3 100.12
38.67% K Niter   KNO3 101.10
37.03% K Kafehydrocyanite  * K4Fe++(CN)6·3(H2O) 422.39
36.88% K Chlormanganokalite   K4MnCl6 424.05
35.50% K Hieratite   K2SiF6 220.27
32.82% K Buetschliite   K2Ca(CO3)2 238.29
32.82% K Butschliite   K2Ca(CO3)2 238.29
32.82% K Fairchildite   K2Ca(CO3)2 238.29
32.29% K Elpasolite   K2NaAlF6 242.16
31.55% K Misenite   K8H8(SO4)7(?) 991.28
28.71% K Mercallite   KHSO4 136.17
28.69% K Rinneite   K3NaFe++Cl6 408.85
27.46% K Aphthitalite   (K,Na)3Na(SO4)2 320.33
26.76% K Pyrophosphite  * K2CaP2O7 292.22
26.58% K Lopezite   K2Cr2O7 294.18
26.55% K Baylissite   K2Mg(CO3)2·4(H2O) 294.58
25.90% K Arnhemite  * (K,Na)4Mg2(P2O7)·5(H2O) 452.91
25.33% K Chlorothionite   K2Cu(SO4)Cl2 308.71
25.07% K Douglasite   K2Fe++Cl4·2(H2O) 311.88
24.82% K Kalborsite   K6Al4Si6BO20(OH)4Cl 945.31
24.72% K Kaliophilite   KAlSiO4 158.16
24.72% K Kalsilite   KAlSiO4 158.16
24.47% K Mitscherlichite   K2CuCl4·2(H2O) 319.58
23.88% K Minguzzite   K3Fe+++(C2O4)3·3(H2O) 491.25
23.81% K Lithosite   K6Al4Si8O25·(H2O) 985.20
23.81% K Syngenite   K2Ca(SO4)2·(H2O) 328.42
23.74% K Erythrosiderite   K2Fe+++Cl5·(H2O) 329.32
23.16% K Khibinskite   K2ZrSi2O7 337.59
22.42% K Archerite   (K,NH4)H2PO4 130.82
21.85% K Kalistrontite   K2Sr(SO4)2 357.94
21.32% K Leonite   K2Mg(SO4)2·4(H2O) 366.69
21.07% K Chlorocalcite   KCaCl3 185.53
20.39% K Gregoryite  * (Na2,K2,Ca)CO3 115.06
20.04% K Pyrocoproite  * (Mg(K,Na))2P2O7 292.70
20.02% K Ponomarevite   K4Cu++4OCl10 781.10
19.66% K Wadeite   K2ZrSi3O9 397.67
19.64% K Mereiterite   K2Fe++(SO4)2·4(H2O) 398.23
19.63% K Avogadrite   (K,Cs)BF4 149.35
19.54% K Altisite   Na3K6Ti2Al2Si8O26Cl3 1,200.31
19.42% K Picromerite   K2Mg(SO4)2·6(H2O) 402.72
19.28% K Grimselite   K3Na(UO2)(CO3)3·(H2O) 608.36
19.02% K Panunzite   (K,Na)AlSiO4 154.14
19.02% K Trikalsilite   (K,Na)AlSiO4 154.14
18.91% K Piypite   K2Cu2(SO4)2O 413.42
18.84% K Langbeinite   K2Mg2(SO4)3 415.00
18.81% K Kostylevite   K2ZrSi3O9·(H2O) 415.69
18.30% K Pseudocotunnite   K2PbCl4(?) 427.21
17.91% K Leucite   KAlSi2O6 218.25
17.69% K Cyanochroite   K2Cu(SO4)2·6(H2O) 441.96
17.26% K Murunskite   K2Cu3FeS4 452.95
16.42% K Manganolangbeinite   K2Mn2(SO4)3 476.26
15.83% K Rasvumite   KFe2S3 246.99
15.70% K Kainite   MgSO4·KCl·3(H2O) 248.97
15.62% K Alumoklyuchevskite   K3Cu3AlO2(SO4)4 751.17
15.32% K Klyuchevskite   K3Cu3(Fe+++,Al)O2(SO4)4 765.60
15.04% K Klyuchevskite-Duplicate   K3Cu3Fe+++O2(SO4)4 780.03
14.78% K IMA98.069   K2MnV4O12 528.89
14.63% K Davanite   K2TiSi6O15 534.58
14.46% K Paraumbite   K3Zr2HSi6O18·n(H2O)n=3to7 811.30
14.07% K Carnallite   KMgCl3·6(H2O) 277.85
14.05% K Microcline   KAlSi3O8 278.33
14.05% K Orthoclase   KAlSi3O8 278.33
13.65% K Fedotovite   K2Cu++3O(SO4)3or(K,Na)2(Cu,Zn,Pb)3S3O13 573.02
13.62% K Yavapaiite   KFe+++(SO4)2 287.07
13.53% K Dalyite   K2ZrSi6O15 577.92
13.33% K Santite   KB5O6(OH)4·2(H2O) 293.20
13.24% K Tiettaite   (Na,K)17Fe+++TiSi16O29(OH)30·2(H2O) 2,066.91
12.97% K Polyhalite   K2Ca2Mg(SO4)4·2(H2O) 602.94
12.82% K Krausite   KFe+++(SO4)2·(H2O) 305.09
12.49% K Palmierite   (K,Na)2Pb(SO4)2 469.47
12.44% K IMA98.019  ! NaK2(Ti,Nb)2Si4O12(O,OH)2·4(H2O) 628.36
12.18% K Leightonite   K2Ca2Cu(SO4)4·2(H2O) 642.18
11.99% K Shcherbakovite   (K,Na,Ba)3(Ti,Nb)2Si4O14 586.87
11.63% K Tinsleyite   KAl2(PO4)2(OH)·2(H2O) 336.04
11.46% K Gwihabaite  ! (NH4,K)(NO3) 85.31
11.34% K Umbite   K2ZrSi3O9·(H2O) 689.36
11.32% K Amicite   K2Na2Al4Si4O16·5(H2O) 690.51
10.89% K Goldichite   KFe+++(SO4)2·4(H2O) 359.13
10.73% K Tinaksite   K2Na(Ca,Mn++)2(Ti,Fe)O[Si7O18(OH)] 728.74
10.69% K Charoite   K5Ca8(Si6O15)2(Si2O7)Si4O9(OH)·3(H2O) 1,828.68
10.57% K Ungemachite   K3Na8Fe+++(SO4)6(NO3)2·6(H2O) 1,109.70
10.53% K Clinoungemachite   K3Na9Fe+++(SO4)6(OH)3·9(H2O)? 1,113.74
10.50% K Trilithionite   KLi1.5Al1.5AlSi3O10F2 372.23
10.49% K Minyulite   KAl2(PO4)2(OH,F)·4(H2O) 372.57
10.43% K Bartonite   K3Fe10S14 1,124.69
10.33% K Perlialite   K8Tl4Al12Si24O72·20(H2O) 3,027.26
10.33% K Humberstonite   K3Na7Mg2(SO4)6(NO3)2·6(H2O) 1,135.32
10.31% K Tokkoite   K2Ca4[Si7O18(OH)](F,OH) 758.60
10.20% K Boromuscovite   KAl2(Si3B)O10(OH,F)2 383.13
10.12% K Lepidolite   K(Li,Al)3(Si,Al)4O10(F,OH)2 386.31
10.04% K Manaksite   KNaMn++Si4O10 389.36
9.93% K Leucophosphite   KFe+++2(PO4)2(OH)·2(H2O) 393.77
9.82% K Litidionite   KNaCuSi4O10 397.97
9.82% K Muscovite   KAl2(Si3Al)O10(OH,F)2 398.31
9.77% K Ferro-aluminoceladonite  ! K2Fe++2Al2Si8O20(OH)4 800.71
9.74% K Ferroceladonite  ! K2Fe++Fe+++Si8O20(OH)4 802.59
9.72% K Masutomilite   K(Li,Al,Mn++)3[(Si,Al)4O10](F,OH)2 402.17
9.71% K Hyalophane   (K,Ba)Al(Si,Al)3O8 302.06
9.66% K Aluminoceladonite   KAl(Mg,Fe++)[]Si4O10(OH)2 404.62
9.65% K Taeniolite   KLiMg2Si4O10F2 404.98
9.65% K Tainiolite   KLiMg2Si4O10F2 404.98
9.44% K Alunite   KAl3(SO4)2(OH)6 414.21
9.43% K Tiptopite   K2(Na,Ca)2Li3Be6(PO4)6(OH)2·(H2O) 829.47
9.37% K Phlogopite   KMg3(Si3Al)O10(F,OH)2 417.26
9.36% K Georgechaoite   KNaZrSi3O9·2(H2O) 417.59
9.34% K Eastonite   KMg2Al[Al2Si2O10](OH)2 418.83
9.27% K IMA99.024  ! KCrMg(Si4O10)(OH)2 421.75
9.13% K Vuoriyarvite   (K,Na)2(Nb,Ti)2Si4O12(O,OH)2·4(H2O) 642.34
9.11% K Boltwoodite   HK(UO2)(SiO4)·1.5(H2O) 429.24
9.05% K Frankamenite   K3Na3Ca5(Si12O30)[F,(OH)]4·(H2O) 1,295.68
9.02% K Biotite   K(Mg,Fe++)3[AlSi3O10(OH,F)2 433.53
8.96% K Gorgeyite   K2Ca5(SO4)6·(H2O) 872.98
8.94% K Zinnwaldite   KLiFe++Al(AlSi3)O10(F,OH)2 437.10
8.76% K Tetra-ferriphlogopite   KMg3Fe+++Si3O10(OH)2 446.13
8.74% K Taranakite   K3Al5(HPO4)6(PO4)2·18(H2O) 1,342.30
8.67% K Carnotite   K2(UO2)2V2O8·3(H2O) 902.18
8.57% K Kalinite   KAl(SO4)2·11(H2O) 456.38
8.53% K Ankoleite   K2(UO2)2(PO4)2·6(H2O) 916.29
8.53% K Meta-ankoleite   K2(UO2)2(PO4)2·6(H2O) 916.29
8.50% K Norrishite   K(Mn+++2Li)Si4O12 460.25
8.48% K Denisovite   (K,Na)Ca2Si3O8(F,OH) 345.98
8.26% K Kamchatkite   KCu++3OCl(SO4)2 473.32
8.24% K Potassium-alum   KAl(SO4)2·12(H2O) 474.39
8.13% K Biphosphammite   (NH4,K)H2PO4 120.29
8.06% K Siderophyllite   KFe++2Al(Al2Si2)O10(F,OH)2 484.90
8.00% K Iquiqueite   K3Na4Mg(Cr++++++O4)B24O39(OH)·12(H2O) 1,466.16
7.81% K Jarosite   KFe+++3(SO4)2(OH)6 500.81
7.72% K Kosnarite   KZr++++2(PO4)3 506.46
7.67% K Ferri-annite   K(Fe++,Mg)3(Fe+++,Al)Si3O10(OH)2 509.88
7.62% K Annite   KFe++3AlSi3O10(OH,F)2 512.88
7.58% K IMA99.048  ! KFe++3AlSi3O10F2 515.87
7.52% K Abernathyite   K(UO2)(AsO4)·4(H2O) 520.11
7.47% K Olmsteadite   KFe++2(Nb,Ta)(PO4)2O2·2(H2O) 523.68
7.43% K Willhendersonite   KCaAl3Si3O12·5(H2O) 526.45
7.36% K Pitiglianoite   Na6K2Si6Al6O24(SO4)·2(H2O) 1,062.62
7.29% K Shibkovite  ! K(Ca,Mn,Na)2(K2-x,[]x)2ZnSi12O30(x~0.8) 1,180.17
7.26% K Niobophyllite   (K,Na)3(Fe++,Mn)6(Nb,Ti)2[Si8O24](O,OH,F)7 1,345.90
7.24% K Shafranovskite   (Na,K)6(Mn++,Fe++)3Si9O24·6(H2O) 1,080.50
7.23% K Tetra-ferri-annite   KFe++3Fe++++Si3O10(OH)2 540.75
7.14% K Metavoltine   K4Na4(Fe++,Zn)Fe+++6(SO4)12O2·20(H2O) 2,189.12
7.12% K Weeksite   K2(UO2)2Si6O15·4(H2O) 1,098.82
7.11% K Kuzmenkoite   K4[]4[(Mn,Fe)2(H2O)4][(Ti,Nb)8(OH,O)8][Si4O12]4·nH2O 2,199.29
7.02% K Euchlorine   KNaCu++3(SO4)3O 556.92
6.91% K Davyne   Na4K2Ca2Si6Al6O24(SO4)Cl2 1,131.67
6.78% K Zippeite   K4(UO2)6(SO4)3(OH)10·4(H2O) 2,306.88
6.70% K Astrophyllite   (K,Na)3(Fe++,Mn)7Ti2Si8O24(O,OH)7 1,312.74
6.69% K Nepheline   (Na,K)AlSiO4 146.08
6.60% K Kupletskite   (K,Na)3(Mn,Fe++)7(Ti,Nb)2Si8O24(O,OH)7 1,333.33
6.57% K Kremersite   (NH4,K)2Fe+++Cl5·(H2O) 297.73
6.53% K Fuenzalidaite   K6(Na,K)4Na6Mg10(SO4)12(IO3)12·12(H2O) 4,191.42
6.32% K Volkovskite   KCa4[B5O8(OH)4][B(OH)3]Cl·4(H2O) 618.83
6.22% K Canasite   (Na,K)6Ca5Si12O30(OH,F)4 1,257.57
5.94% K Sitinakite   Na2K(Ti,Nb)4O4(SiO4)2(O,OH)·4(H2O) 658.10
5.88% K Phillipsite   (K,Na,Ca)1-2(Si,Al)8O16·6(H2O) 664.63
5.80% K Selwynite   NaK(Be,Al)Zr2(PO4)4·2(H2O) 673.96
5.72% K Odintsovite   K2Na4Ca3Ti2Be4Si12O38 1,367.20
5.70% K Hummerite   KMgV+++++5O14·8(H2O) 686.22
5.65% K Lovdarite   K2Na6Be4Si14O36·9(H2O) 1,383.50
5.60% K IMA99.032  ! K2NaMn7(Nb,Zr)2Si8O26(OH)5 1,396.43
5.59% K Sogdianite   (K,Na)2(Li,Fe+++,Al)3ZrSi12O30 1,049.22
5.54% K Pharmacosiderite   KFe+++4(AsO4)3(OH)4·6-7(H2O) 705.84
5.48% K Lecontite   (NH4,K)Na(SO4)·2(H2O) 178.39
5.46% K Kaliborite   KHMg2B12O16(OH)10·4(H2O) 716.56
5.35% K Monsmedite   H8K2Tl2(SO4)8·11(H2O) 1,461.70
5.32% K Cryptomelane   K(Mn++++,Mn++)8O16 734.59
5.32% K Dusmatovite   K(K,Na,[])(Mn++,Y,Zr)2(Zn,Li)3Si12O30 1,176.31
5.22% K Alumopharmacosiderite   KAl4(AsO4)3(OH)4·6·5(H2O) 748.91
5.20% K Merrihueite   (K,Na)2(Fe++,Mg)5Si12O30 1,126.96
5.17% K Hydrodelhayelite   KCa2AlSi7O17(OH)2·6(H2O) 756.93
4.83% K Ammonioleucite   (NH4,K)AlSi2O6 202.45
4.72% K Francoanellite   H6(K,Na)3(Al,Fe+++)5(PO4)8·13(H2O) 1,242.49
4.66% K Satimolite   KNa2Al4(B2O5)3Cl3·13(H2O) 838.41
4.59% K Ashcroftine-(Ce)   K5Na5(Ce,Ca)12Si28O70(OH)2(CO3)8·8(H2O) 4,256.27
4.55% K Levyne   (Ca,Na2,K2)Al2Si4O12·6(H2O) 515.67
4.50% K Yingjiangite   (K2,Ca)(UO2)7(PO4)4(OH)6·6(H2O) 2,607.53
4.39% K Mantienneite   KMg2Al2Ti(PO4)4(OH)3·15(H2O) 890.69
4.35% K Matveevite   KTiMn2Fe+++2(PO4)4(OH)3·15(H2O) 899.81
4.34% K Miserite   K(Ca,Ce)5[Si8O22](OH,F)2 901.19
4.31% K Mangan-neptunite   KNa2Li(Mn,Fe++)2Ti2Si8O24 906.78
4.31% K Apophyllite  * KCa4(Si4O10)2F·8(H2O) 907.20
4.31% K Neptunite   KNa2Li(Fe++,Mn)2Ti2Si8O24 907.69
4.29% K Spodiophyllite  * (Na,K)4(Mg,Fe++)3(Fe+++,Al)2(Si8O24) 910.57
4.28% K Poudretteite   KNa2B3Si12O30 912.90
4.14% K Magbasite   KBa(Al,Sc)(Mg,Fe++)6Si6O20F2 943.31
4.06% K Sveite   KAl7(NO3)4Cl2(OH)16·8(H2O) 963.13
4.02% K Berezanskite  ! KLi3Ti2Si12O30 972.69
3.98% K Clinoptilolite-K  ! (K,Na,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) 1,375.59
3.95% K Milarite   K2Ca4Al2Be4Si24O60·(H2O) 1,980.55
3.89% K Compreignacite   K2(UO2)6O4(OH)6·8(H2O) 2,008.53
3.85% K Rameauite   K2CaU++++++6O20·9(H2O) 2,028.57
3.85% K Voltaite   K2Fe++5Fe+++3Al(SO4)12·18H2O 2,028.99
3.82% K Darapiosite   KNa2Li(Mn,Zn)2ZrSi12O30 1,024.13
3.80% K Sugilite   KNa2(Fe++,Mn++,Al)2Li3Si12O30 1,028.28
3.77% K Zincovoltaite   K2Zn5Fe+++3Al(SO4)12·18(H2O) 2,076.71
3.77% K Rhodizite   (K,Cs)Al4Be4(B,Be)12O28 778.83
3.76% K Chayesite   K(Mg,Fe++)4Fe+++(Si12O30) 1,040.72
3.75% K Batisite   (Ba,K,Na)3Ti2Si4O14 624.94
3.71% K Haigerachite  ! KFe+++3(H2PO4)6(HPO4)2·4(H2O) 1,052.58
3.67% K Anorthoclase   (Na,K)AlSi3O8 266.25
3.52% K Potassicrichterite   (K,Na)(CaNa)2Mg5[Si8O22](OH,F)2 832.34
3.51% K Potassic-fluororichterite   (K,Na)(CaNa)Mg5[Si8O22]F2 834.33
3.51% K Brannockite   KSn2Li3Si12O30 1,114.35
3.46% K Calcioandyrobertsite  ! KCaCu5(AsO4)4[As(OH)2O2]-2(H2O) 1,129.55
3.44% K IMA98.057  ! (Ba,K,Pb)4(Y,Ca)2Si8(B,Si)4O28F 1,364.96
3.39% K IMA97.035   (K,Na)Ca2Fe++2Fe+++2[Si5Al3O22](OH)2 865.04
3.36% K Potassic-magnesiosadanagaite  ! (K,Na)Ca2[Mg3(Al,Fe+++)2][Si5Al3O22](OH)2 872.23
3.35% K Meurigite  ! KFe+++7(PO4)5(OH)7·8(H2O) 1,168.06
3.30% K Englishite   K3Na2Ca10Al15(PO4)21(OH)7·26(H2O) 3,550.62
3.28% K Nabokoite   Cu++7Te++++O4(SO4)5·KCl 1,191.29
3.26% K Magnesiosadanagaite   (K,Na)Ca2(Mg,Fe++,Al,Ti)5[(Si,Al)8O22](OH)2 900.44
3.25% K Andyrobertsite  ! KCdCu5(AsO4)4[As(OH)2O2]-2(H2O) 1,201.88
3.24% K Megacyclite   K2Na16Si18O36(OH)18·32(H2O) 2,410.17
3.21% K Jonesite   Ba4(K,Na)2Ti4Al2Si10O36·6(H2O) 1,829.86
3.15% K Sadanagaite   (K,Na)Ca2(Fe++,Mg,Al,Ti)5[(Si,Al)8O22](OH)2 931.99
3.12% K Rubicline  ! (Rb,K)AlSi3O8 313.11
3.12% K Magnesiumastrophyllite   (Na,K)4Mg2(Fe++,Fe+++,Mn)5Ti2Si8O24(O,OH,F)7 1,254.91
3.09% K Chessexite   (K,Na)4Ca2Mg3Al8(SiO4)2(SO4)10(OH)10·40(H2O) 2,528.59
3.09% K Atlasovite   Cu6Fe+++Bi+++O4(SO4)5·KCl 1,264.97
3.03% K Potassicsadanagaite  ! (K,Na)Ca2[Fe++3(Al,Fe+++)2][Si5Al3O22](OH)2 966.86
2.89% K Osumilite-(Mg)   (K,Na)(Mg,Fe++)2(Al,Fe+++)3(Si,Al)12O30 1,015.74
2.82% K Katayamalite  * KCa7Li3Ti2(Si6O18)2(OH,F)2 1,384.24
2.80% K Osumilite-(Fe)   (K,Na)(Fe++,Mg)2(Al,Fe+++)3(Si,Al)12O30 1,047.28
2.78% K Baratovite   KCa7(Ti,Zr)2Li3Si12O36F2 1,408.90
2.70% K Ajoite   (K,Na)Cu7AlSi9O24(OH)6·3(H2O) 1,302.14
2.50% K Hanksite   KNa22(SO4)9(CO3)2Cl 1,564.92
2.42% K Panethite   (Na,Ca,K)2(Mg,Fe++,Mn)2(PO4)2 323.06
2.41% K Margaritasite   (Cs,K,H3O)2(UO2)2V2O8·(H2O) 974.70
2.36% K Potassic-chlorohastingsite  ! (K,Na)Ca2(Fe++,Mg)4Fe+++[Si6Al2O22](Cl,OH)2 994.80
2.29% K Levyne-Na  ! (Na2,Ca,K2)Al2Si4O12·6(H2O) 513.13
2.22% K Perraultite   Na2KBaMn++8(Ti,Nb)4Si8O32(OH,F,(H2O))7 1,759.06
2.22% K Straczekite   (Ca,K,Ba)2V8O20·3(H2O) 880.68
2.16% K Potassicpargasite  ! (K,Na)Ca2(Mg,Fe++)5Si8O22(OH,F)2 906.49
2.01% K Clinoptilolite   (Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) 1,364.31
2.01% K Clinoptilolite-Na  ! (Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) 1,364.31
1.92% K Delindeite   (Na,K)3(Ba,Ca)4(Ti,Fe,Al)6Si8O26(OH)4 1,530.89
1.89% K Roedderite   (Na,K)2(Mg,Fe++)5Si12O30 1,031.99
1.84% K Coombsite   K(Mn++,Fe++,Mg)13(Si,Al)18O42(OH)14 2,127.66
1.82% K Zussmanite   K(Fe++,Mg,Mn)13[AlSi17O42](OH)14 2,147.17
1.82% K Arrojadite   KNa4CaMn++4Fe++10Al(PO4)12(OH,F)2 2,151.01
1.81% K Birnessite   (Na,Ca,K)x(Mn++++,Mn+++)2O4·1.5(H2O) 215.71
1.69% K Barrerite   (Na,K,Ca)2Al2Si7O18·7(H2O) 694.19
1.56% K Phosphofibrite   KCuFe+++15(PO4)12(OH)12·12(H2O) 2,500.28
1.56% K Reyerite   (Na,K)4Ca14Si22Al2O58(OH)8·6(H2O) 2,513.12
1.52% K Levyne-Ca  ! (Ca,Na2,K2)Al2Si4O12·6(H2O) 515.47
1.50% K Phosphuranylite   KCa(H3O)3(UO2)7(PO4)4O4·8(H2O) 2,614.45
1.47% K Yagiite   (Na,K)3Mg4(Al,Mg)6(Si,Al)24O60 1,991.71
1.47% K Hyalotekite   (Ba,Pb,Ca,K)6(B,Si,Al)2(Si,Be)10O28(F,Cl) 1,595.98
1.43% K Tuhualite   [](Na,K)Fe++Fe+++[Si6O15] 546.41
1.40% K Sodium-boltwoodite   (H3O)(Na,K)(UO2)SiO4·(H2O) 696.19
1.39% K Mathiasite   (K,Ca,Sr)(Ti,Cr,Fe,Mg)21O38 1,682.56
1.26% K Gmelinite-K  ! (K,Na,Ca)(Al7Si17O48)·22H2O 1,865.00
1.20% K Millisite   (Na,K)CaAl6(PO4)4(OH)9·3(H2O) 815.98
1.18% K IMA99.014  ! (Cs,K)Al4Be4(B,Be)12O28 825.74
1.16% K Wonesite   (Na,K)(Mg,Fe,Al)6(Si,Al)8O20(OH,F)4 843.71
1.14% K Wellsite  ? (Ba,Ca,K2)Al2Si6O16·6(H2O) 688.80
0.99% K Thornasite   (Na,K)ThSi11(O,F,OH)25·8(H2O) 984.99
0.85% K Clinoptilolite-Ca  ! (Ca,Na,K)2-3Al3(Al,Si)2Si13O36·12(H2O) 1,376.66
0.85% K Povondraite   (Na,K)(Fe+++,Fe++)3(Fe,Mg,Al)6(BO3)3Si6O18(OH)4 1,156.50
0.73% K IMA99.011  ! (Ca,K,Ba,Na)3-4Mn24(Si,Al)40(O,OH)112·21H2O 4,813.97
0.71% K Corvusite   (Na,Ca,K)V8O20·4(H2O) 829.26
0.49% K IMA95.005   (Sr,Ba,K)Mn8O16 793.17
0.43% K Barium-zinc-alumopharmacosiderite  * (Ba,K)0.5(Zn,Cu)0.5(Al,Fe)4(AsO4)3·5(H2O) 1,142.85
0.22% K Mordenite   (Ca,Na2,K2)Al2Si10O24·7(H2O) 874.36
0.13% K Todorokite   (Na,Ca,K)2(Mn++++,Mn+++)6O12·3-4.5(H2O) 583.05
? % K Afghanite   (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3·(H2O) ?
? % K Agrinierite   (K2,Ca,Sr)U3O10·4(H2O) ?
? % K Alushtite   (Ca,Mg,K,Na)Al15MgLi(Fe2+)(Fe3+)[Si6AlO20](OH)10·3(H2O) ?
? % K Anandite   (Ba,K)(Fe++,Mg)3(Si,Al,Fe)4O10(O,OH)2 ?
? % K Ashcroftine-(Y)   K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8·8(H2O) ?
? % K Bannermanite   (Na,K)xV++++xV+++++6-xO15 ?
? % K Bannisterite   KCa(Mn,Fe++,Zn)21(Si,Al)32O76(OH)16·12(H2O) ?
? % K Bariumbannisterite  * (K,H3O)(Ba,Ca)(Mn++,Fe++,Mg)21(Si,Al)32O80(O,OH)16·4-12(H2O) ?
? % K Bellbergite   (K,Ba,Sr)2Sr2Ca2(Ca,Na)4Al18Si18O72·30(H2O) ?
? % K Benyacarite   (H2O,K)2Ti(Mn++,Fe++)2(Fe+++,Ti)2Ti(PO4)4(O,F)2·14(H2O) ?
? % K Bystrite   (Na,K)7Ca(Si6Al6)O24S1,5·(H2O) ?
? % K Carletonite   KNa4Ca4Si8O18(CO3)4(OH,F)·(H2O) ?
? % K Carlosruizite   K6(Na,K)4Na6Mg10(Se++++++O4)12(IO3)12·12(H2O) ?
? % K Celadonite   K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2 ?
? % K Cesium-kupletskite   (Cs,K,Na)3(Mn,Fe++)7(Ti,Nb)2Si8O24(O,OH,F)7 ?
? % K Cetineite   (K,Na)3+x(Sb2O3)3(Sb2S3)(OH)x·(2.8-x)(H2O) ?
? % K Chabazite-Ca  ! (Ca,Na2,K2,Sr,Mg)[Al2Si4O12]·6(H2O) ?
? % K Chabazite-K  ! (K2,Ca,Na2,Sr,Mg)[Al2Si4O12]·6(H2O) ?
? % K Chabazite-Na  ! (Na2,K2,Ca,Sr,Mg)[Al2Si4O12]·6(H2O) ?
? % K Chromphyllite  ! (K,Ba)(Cr,Al)2[AlSi3O10](OH,F)2 ?
? % K Dachiardite   (Ca,Na2,K2)5Al10Si38O96·25(H2O) ?
? % K Dachiardite-Ca  ! (Ca,Na2,K2)5Al10Si38O96·25(H2O) ?
? % K Dachiardite-Na  ! (Ca,Na2,K2)5Al10Si38O96·25(H2O) ?
? % K Dehrnite  * 6CaO.(Na,K)2O.2P2O5·(H2O) ?
? % K Delhayelite   (Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3·18(H2O) ?
? % K Dickinsonite   (K,Ba)(Na,Ca)5(Mn++,Fe++,Mg)14Al(PO4)12(OH,F)2 ?
? % K Djerfisherite   K6Na(Fe,Cu)24S26Cl ?
? % K Dorallcharite   (Tl,K)Fe+++3(SO4)2(OH)6 ?
? % K Eifelite   KNa3Mg4Si12O30 ?
? % K Erionite   (K2,Na2,Ca,Mg)2[Al4Si14O36]·15(H2O) ?
? % K Erionite-Ca  ! (Ca,K2,Na2)2[Al4Si14O36]·15(H2O) ?
? % K Erionite-K  ! (K2,Ca,Na2)2[Al4Si14O36]·15(H2O) ?
? % K Erionite-Na  ! (Na2,K2,Ca)2[Al4Si14O36]·15(H2O) ?
? % K Ershovite   Na4K3(Fe++,Mn++,Ti)2Si8O20(OH)4·4(H2O) ?
? % K Fedorite   (K,Na)5(Ca,Na)14Si32O76(OH,F)4·2(H2O) ?
? % K Fenaksite   (K,Na,Ca)4(Fe++,Fe+++,Mn)2Si8O20(OH,F) ?
? % K Ferrierite   (Na2,K2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72]·18(H2O) ?
? % K Ferrierite-K  ! (K2,Na2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72]·18(H2O) ?
? % K Ferrierite-Mg  ! (Mg,Na2,K2,Ca)3-5Mg[Al5-7Si27.5-31O72]·18(H2O) ?
? % K Ferrierite-Na  ! (Na2,K2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72]·18(H2O) ?
? % K Fluorapophyllite   (K,Na)Ca4Si8O20(F,OH)·8(H2O) ?
? % K Franklinphilite   K4(Mn++,Mg,Fe+++,Zn)48(Si,Al)72(O,OH)216·16(H2O) ?
? % K Ganophyllite   (K,Na)2(Mn,Al,Mg)8(Si,Al)12O29(OH)7·8-9(H2O) ?
? % K Giuseppettite   (Na,K,Ca)7-8(Si,Al)12O24(SO4,Cl)1-2 ?
? % K Glauconite   (K,Na)(Fe+++,Al,Mg)2(Si,Al)4O10(OH)2 ?
? % K Gobbinsite   Na4(Ca,Mg,K2)Al6Si10O32·12(H2O) ?
? % K Harmotome   (Ba,Na,K)1-2(Si,Al)8O16·6(H2O) ?
? % K Hendricksite   K(Zn,Mn)3Si3AlO10(OH)2 ?
? % K Herschelite  ? (Na,Ca,K)AlSi2O6·3(H2O) ?
? % K Heulandite-K  ! (K,Na,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) ?
? % K Hydroastrophyllite   (H3O,K,Ca)3(Fe++,Mn)5-6Ti2Si8(O,OH)31 ?
? % K Hydrobiotite   K(Mg,Fe)6(Si,Al)8O20(OH)4·x(H2O) ?
? % K Hydroxyapophyllite   KCa4Si8O20(OH,F)·8(H2O) ?
? % K Illite  * (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)] ?
? % K Innelite   (Ba,K)4(Na,Ca)3Ti3(Si2O7)(SO4)O4 ?
? % K Iraqite-(La)   K(La,Ce,Th)2(Ca,Na)4(Si,Al)16O40 ?
? % K Jeppeite   (K,Ba)2(Ti,Fe+++)6O13 ?
? % K Jinshajiangite   (Na,K)5(Ba,Ca)4(Fe,Mn)15(Ti,Fe,Nb,Zr)8Si15O64(F,O,OH)6 ?
? % K Johnwalkite   K(Mn++,Fe+++,Fe++)2(Nb,Ta)(PO4)2O2((H2O),OH)2 ?
? % K Kalifersite  ! (K,Na)5Fe+++7Si20O50(OH)6·12(H2O) ?
? % K Kalipyrochlore   (K,Sr)2-xNb2O6(O,OH)·n(H2O) ?
? % K Kinoshitalite   (Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2 ?
? % K Labuntsovite   (K,Ba,Na)(Ti++++,Nb)(Si,Al)2(O,OH)7·(H2O) ?
? % K Latiumite   (Ca,K)8(Al,Mg,Fe)(Si,Al)10O25(SO4) ?
? % K Lemoynite   (Na,K)2CaZr2Si10O26·5-6(H2O) ?
? % K Lennilenapeite   K6-7(Mg,Mn,Fe++,Fe+++,Zn)48(Si,Al)72(O,OH)216·16(H2O) ?
? % K Lewistonite  * 15CaO.(K,Na)2O.4P2O5·8(H2O) ?
? % K Liottite   (Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4·(H2O) ?
? % K Lourenswalsite   (K,Ba)2(Ti,Mg,Ca,Fe)4(Si,Al,Fe)6O14(OH)12 ?
? % K Manjiroite   (Na,K)(Mn++++,Mn++)8O16·n(H2O) ?
? % K Mazzite   K2CaMg2(Al,Si)36O72·28(H2O) ?
? % K Merlinoite   (K,Ca,Na,Ba)7(Si25Al9)O64·23(H2O) ?
? % K Microsommite   (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4,CO3)2-3 ?
? % K Minamiite   (Na,Ca,K)Al3(SO4)2(OH)6 ?
? % K Minehillite   (K,Na)2-3Ca28(Zn4Al4Si40)O112(OH)16 ?
? % K Montdorite   (K,Na)(Fe++,Mn++,Mg)2.5[Si4O10](F,OH)2 ?
? % K Monteregianite-(Y)   (Na,K)6(Y,Ca)2Si16O38·10(H2O) ?
? % K Montesommaite   (K,Na)9Al9Si23O64·10(H2O) ?
? % K Mountainite   (Ca,Na2,K2)2Si4O10·3(H2O) ?
? % K Nenadkevichite   (Na,Ca,K)(Nb,Ti)Si2O6(O,OH)·2(H2O) ?
? % K Obradovicite   H4(K,Na)Cu++Fe+++2(AsO4)(MoO4)5·12(H2O) ?
? % K Offretite   (K2,Ca)5Al10Si26O72·30(H2O) ?
? % K Pahasapaite   (Ca,Li,K,Na)27Li16Be48(PO4)48·76(H2O) ?
? % K Parsettensite   (K,Na,Ca)(Mn,Al)7Si8O20(OH)8·2(H2O)(?) ?
? % K Paulingite   (K2,Ca,Na2,Ba)5Al10Si35O90·45(H2O) ?
? % K Paulingite-Ca  ! (Ca3.70,K2.67,Na0.86,Ba0.10)[Al10.78Si31.21O84]·34(H2O) ?
? % K Paulingite-K  ! (K2,Ca,Na2,Ba)5Al10Si35O90·45(H2O) ?
? % K Paulingite-Na  ! (Na2,K2,Ca,Ba)5Al10Si35O90·45(H2O) ?
? % K Paulkerrite   K(Mg,Mn)2(Fe+++,Al)2Ti(PO4)4(OH)3·15(H2O) ?
? % K Phillipsite-Ca  ! (Ca,K,Na)1-2(Si,Al)8O16·6(H2O) ?
? % K Phillipsite-K  ! (K,Na,Ca)1-2(Si,Al)8O16·6(H2O) ?
? % K Phillipsite-Na  ! (Na,K,Ca)1-2(Si,Al)8O16·6(H2O) ?
? % K Phosphovanadylite   (Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]·12(H2O)x~0.66 ?
? % K Polylithionite   KLi2AlSi4O10(F,OH)2 ?
? % K Priderite   (K,Ba)(Ti,Fe+++)8O16 ?
? % K Quadridavyne   (Na,K)6Ca2Al6Si6O24Cl4 ?
? % K Rankamaite   (Na,K,Pb,Li)3(Ta,Nb,Al)11(O,OH)30 ?
? % K Rhodesite   (Ca,Na2,K2)8Si16O40·11(H2O) ?
? % K Roscoelite   K(V,Al,Mg)2AlSi3O10(OH)2 ?
? % K Sacrofanite   (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4·n(H2O) ?
? % K Sanidine   (K,Na)(Si,Al)4O8 ?
? % K Sigismundite  ! (Ba,K,Pb)Na3(Ca,Sr)(Fe++,Mg,Mn)14Al(OH)2(PO4)12 ?
? % K Sobotkite   (K,Ca0.5)0.33(Mg0.66Al0.33)3(Si3Al)O10(OH)2·1-5(H2O) ?
? % K Sodium-pharmacosiderite   (Na,K)2Fe+++4(AsO4)3(OH)5·7(H2O) ?
? % K Sodiumdachiardite   (Na2,Ca,K2)4-5Al8Si40O96·26(H2O) ?
? % K Sosedkoite   (K,Na)1-x(Ta,Nb,Al)4(O,OH)11 ?
? % K Spheniscidite   (NH4,K)(Fe+++,Al)2(PO4)2(OH)·2(H2O) ?
? % K Steacyite   Th(Ca,Na)2K1-xSi8O20 ?
? % K Stilpnomelane   K(Fe++,Mg,Fe+++,Al)8(Si,Al)12(O,OH)27·2(H2O) ?
? % K Tobelite   (NH4,K)Al2(Si3Al)O10(OH)2 ?
? % K Tounkite   (Na,Ca,K)8Al6Si6O24(SO4)2Cl·(H2O) ?
? % K Tschortnerite   Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]·x(H2O),x>=20 ?
? % K Turkestanite   Th(Ca,Na)2(K1-x,[]x)Si8O20·n(H2O) ?
? % K Tuscanite   K(Ca,Na)6(Si,Al)10O22(SO4,CO3,(OH)2)·(H2O) ?
? % K Vanuranylite  ? (H3O,Ba,Ca,K)1.6(UO2)2V2O8·4(H2O)(?) ?
? % K Vinogradovite   Na8Ti8O8(Si2O6)4[(Si3Al)O10]2[((H2O)),(Na,K)2] ?
? % K Vishnevite   (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4·n(H2O) ?
? % K Yakhontovite   (Ca,Na,K)0,3(CuFe++Mg)2Si4O10(OH)2·3(H2O) ?
? % K Yimengite   K(Cr,Ti,Fe,Mg)12O19 ?
? % K Yuksporite   (K,Ba)(Na,Sr)Ca2(Si,Ti)4O11(F,OH)·n(H2O) ?
? % K Zimbabweite   Na(Pb,Na,K)2(Ta,Nb,Ti)4As+++4O18 ?
? % K Zircophyllite   (K,Na,Ca)3(Mn,Fe++)7(Zr,Nb)2Si8O27(OH,F)4 ?
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(* - Mineral Name Is Not IMA Approved)

(! - New Dana classification added or changed from Danas New Mineralogy)

(? - IMA Discredited Mineral Species Name)

There are 390 minerals with K in the Mineralogy Database.

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