Silicon (Si) Minerals sorted by Mineral Name
Click here for List sorted by Weight Percent
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% Si | Mineral Name | Chemical Formula | MW |
17.36 % Si | Pumpellyite-(Fe++) | Ca2Fe++(Al,Fe+++)2(SiO4)(Si2O7)(OH)2·(H2O) | 485.24 |
16.78 % Si | Pumpellyite-(Fe+++) | Ca2Fe+++Al2(SiO4)(Si2O7)(OH,O)2·(H2O) | 502.25 |
17.90 % Si | Pumpellyite-(Mg) # | Ca2MgAl2(SiO4)(Si2O7)(OH)2·(H2O) | 470.70 |
16.69 % Si | Pumpellyite-(Mn++) | Ca2(Mn++,Mg)(Al,Mn+++,Fe)2(SiO4)(Si2O7(OH)2·(H2O) | 504.86 |
24.42 % Si | Punkaruaivite ! | Li{Ti2(OH)2[Si4O11(OH)]}·H2O | 460.07 |
20.51 % Si | Pyatenkoite-(Y) ! | Na5(Y,Dy,Gd)TiSi6O18·6(H2O) | 821.63 |
20.90 % Si | Pyrope # | Mg3Al2(SiO4)3 | 403.13 |
31.18 % Si | Pyrophyllite # | Al2Si4O10(OH)2 | 360.31 |
15.99 % Si | Pyrosmalite-(Fe) | (Fe++,Mn)8Si6O15(OH,Cl)10 | 1,053.90 |
15.73 % Si | Pyrosmalite-(Mn) # | (Mn,Fe++)8Si6O15(OH,Cl)10 | 1,071.52 |
21.31 % Si | Pyroxferroite | (Fe++,Mn)7[Si7O21] | 922.61 |
21.41 % Si | Pyroxmangite # | (Mn,Fe++)SiO3 | 131.20 |
15.28 % Si | Quadridavyne | (Na,K)6Ca2Al6Si6O24Cl4 | 1,103.19 |
8.05 % Si | Quadruphite-VII | Na14CaMgTi4[Si2O7]2(PO4)4O4F2 | 1,395.97 |
8.05 % Si | Quadruphite-VIII | Na14CaMgTi4(Si2O7)2(PO4)4O4F2 | 1,395.97 |
46.74 % Si | Quartz # | SiO2 | 60.08 |
6.40 % Si | Queitite | Pb4Zn2(SiO4)(Si2O7)(SO4) | 1,315.89 |
21.35 % Si | Raite | Na4Mn++4Si8(O,OH)24·9(H2O) | 1,052.54 |
19.48 % Si | Rankinite # | Ca3Si2O7 | 288.40 |
26.07 % Si | Raslakite ! | Na15Ca3Fe3(Na,Zr)3Zr3(Si,Nb)(Si25O73)(OH,H2O)3(Cl,OH) | 2,774.01 |
24.09 % Si | Rastsvetaevite ! | Na27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2 | 6,063.62 |
21.49 % Si | Rectorite # | (Na,Ca)Al4(Si,Al)8O20(OH)4·2(H2O) | 784.18 |
34.24 % Si | Reedmergnerite | NaBSi3O8 | 246.05 |
15.32 % Si | Reidite ! | ZrSiO4 | 183.31 |
13.39 % Si | Reinhardbraunsite | Ca5(SiO4)2(OH,F)2 | 419.57 |
10.83 % Si | Rengeite ! | Sr4ZrTi4Si4O22 | 1,063.06 |
20.63 % Si | Revdite | Na2Si2O5·5(H2O) | 272.22 |
24.59 % Si | Reyerite # | (Na,K)4Ca14Si22Al2O58(OH)8·6(H2O) | 2,513.12 |
30.67 % Si | Rhodesite # | KHCa2Si8O19·5(H2O) | 732.57 |
21.75 % Si | Rhodonite # | (Mn++,Fe++,Mg,Ca)SiO3 | 129.13 |
11.38 % Si | Rhonite # | Ca2(Mg,Fe++,Fe+++,Ti)6(Si,Al)6O20 | 814.43 |
12.36 % Si | Ribbeite | (Mn++,Mg)5(SiO4)2(OH)2 | 454.58 |
25.49 % Si | Richterite # | Na(CaNa)(Mg,Fe++)5[Si8O22](OH)2 | 881.35 |
24.01 % Si | Riebeckite # | [ ]Na2(Fe++3Fe+++2)Si8O22(OH)2 | 935.90 |
4.94 % Si | Rilandite # | (Cr,Al)6SiO11·5(H2O) (?) | 568.61 |
19.96 % Si | Ringwoodite | Mg2SiO4 | 140.69 |
13.69 % Si | Rinkite ! | Na(Na,Ca)2(Ca,Ce)4(Ti,Nb)(Si2O7)2(O,F)2 | 820.37 |
24.25 % Si | Riversideite # | Ca5Si6O16(OH)2·2(H2O) | 694.94 |
11.95 % Si | Roeblingite # | Pb2Ca6(Si6O18)(SO4)2(OH)2·4(H2O) | 1,409.57 |
32.66 % Si | Roedderite | (Na,K)2(Mg,Fe++)5Si12O30 | 1,031.99 |
20.78 % Si | Roggianite | Ca2[Be(OH)2Al2Si4O13]·<2·5(H2O) | 540.72 |
0.52 % Si | Romanechite # | (Ba,H2O)2(Mn++++,Mn+++)5O10 | 544.25 |
14.49 % Si | Rondorfite ! | Ca8Mg(SiO4)4Cl2 | 782.89 |
20.50 % Si | Roscoelite # | K(V,Al,Mg)2AlSi3O10(OH)2 | 411.01 |
14.37 % Si | Rosenbuschite # | (Ca,Na)3(Zr,Ti)Si2O8F | 390.97 |
22.72 % Si | Rosenhahnite | Ca3Si3O8[(OH)2-4x,(CO3)x] | 370.80 |
18.24 % Si | Rossmanite ! | [ ]LiAl2Al6(Si6O18)(BO3)3(OH)4 | 923.75 |
14.30 % Si | Rowlandite-(Y) # | Y4Fe++Si4O14F2 (?) | 785.80 |
26.91 % Si | Rubicline ! | (Rb,K)AlSi3O8 | 313.11 |
11.14 % Si | Rudenkoite ! | Sr3Al3[(Si,Al)4O10](OH,O)8Cl2·H2O | 877.08 |
18.71 % Si | Ruizite | CaMn+++Si2O6(OH)·2(H2O) | 300.22 |
15.03 % Si | Rustumite | Ca10(Si2O7)2(SiO4)Cl2(OH)2 | 934.12 |
15.14 % Si | Sacrofanite | (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4·n(H2O) | 1,168.52 |
18.08 % Si | Sadanagaite | (K,Na)Ca2(Fe++,Mg,Al,Ti)5[(Si,Al)8O22](OH)2 | 931.99 |
18.63 % Si | Saliotite | Na0.5Li0.5Al3AlSi3O10(OH)5 | 452.18 |
0.20 % Si | Samarskite-(Yb) ! | (Yb,Y,REE,U,Th,Ca,Fe++) (Nb,Ta,Ti)O4 | 312.29 |
17.31 % Si | Samfowlerite | Ca14Mn++3Zn2(Be,Zn)2Be6(SiO4)6(Si2O7)4(OH,F)6 | 2,271.52 |
20.54 % Si | Sanbornite # | BaSi2O5 | 273.50 |
19.10 % Si | Saneroite | Na2(Mn++,Fe+++)10Si11V+++++O34(OH)4 | 1,587.79 |
30.72 % Si | Sanidine # | (K,Na)(Si,Al)4O8 | 274.30 |
20.76 % Si | Santaclaraite | CaMn++4Si5O14(OH)2·(H2O) | 676.28 |
17.55 % Si | Saponite # | (Ca/2,Na)0,3(Mg,Fe++)3(Si,Al)4O10(OH)2·4(H2O) | 480.19 |
6.17 % Si | Sapphirine # | (Mg,Al)8(Al,Si)6O20 | 683.33 |
17.87 % Si | Sarcolite # | NaCa6Al4Si6O24F (?) | 942.88 |
6.68 % Si | Saryarkite-(Y) | Ca(Y,Th)Al5(SiO4)2(PO4,SO4)2(OH)7·6(H2O) | 924.75 |
14.52 % Si | Sauconite # | Na0,3Zn3(Si,Al)4O10(OH)2·4(H2O) | 580.37 |
27.06 % Si | Sazhinite-(Ce) | Na2Ce[Si6O14(OH)]·n(H2O), (n >= 1.5) | 622.63 |
25.25 % Si | Sazhinite-(La) ! | Na3La[Si6O15]·2(H2O) | 652.93 |
19.60 % Si | Sazykinaite-(Y) | Na5YZrSi6018·6(H2O) | 859.67 |
24.98 % Si | Scandiobabingtonite ! | Ca2(Fe++,Mn)ScSi5O14(OH) | 562.16 |
22.42 % Si | Scapolite * | (Na,Ca)4[(Al,Si)12O24]Cl | 877.08 |
20.23 % Si | Scawtite # | Ca7Si6(CO3)O18·2(H2O) | 833.09 |
14.62 % Si | Schallerite # | Mn++16[As+++O2OH][Si12O30](OH)14 | 2,305.90 |
19.48 % Si | Scheuchzerite ! | Na(Mn,Mg)9[VSi9O28(OH)](OH)3 | 1,309.36 |
16.00 % Si | Schorl ! | NaFe++3Al6(BO3)3Si6O18(OH)4 | 1,053.38 |
16.11 % Si | Schorl-(F) ! | NaFe++3Al6Si6O18)(BO3)3(OH)3(F,OH) | 1,028.43 |
11.41 % Si | Schorlomite # | Ca3(Ti,Fe+++,Al)2[(Si,Fe+++,Fe++)O4]3 | 516.73 |
21.48 % Si | Scolecite # | CaAl2Si3O10·3(H2O) | 392.34 |
27.54 % Si | Searlesite # | NaBSi2O5(OH)2 | 203.98 |
20.48 % Si | Seidite-(Ce) ! | Na4(Ce,Sr)2{Ti(OH)2(Si8O18)}(O,OH,F)4·5(H2O) | 1,096.99 |
15.25 % Si | Seidozerite # | (Na,Ca)2(Zr,Ti,Mn)2Si2O7(O,F)2 | 368.38 |
46.74 % Si | Seifertite ! | SiO2 | 60.08 |
22.21 % Si | Sekaninaite | (Fe++,Mg)2Al4Si5O18 | 632.27 |
20.29 % Si | Semenovite | (Na,Ca)9(Ce,La)2(Fe++,Mn)(Si,Be)20(O,OH,F)48 | 1,875.54 |
24.04 % Si | Senekevichite ! | CsKNaCa2TiO[Si7O18(OH)] | 817.63 |
27.45 % Si | Sepiolite # | Mg4Si6O15(OH)2·6(H2O) | 613.82 |
23.75 % Si | Serandite # | Na(Mn++,Ca)2Si3O8(OH) | 354.69 |
14.32 % Si | Serendibite # | Ca2(Mg,Al)6(Si,Al,B)6O20 | 706.15 |
24.04 % Si | Shafranovskite | K2Na3(Mn++,Fe++,Na)4[Si9(O,OH)27](OH)2·n(H2O), n~2.33 | 1,051.58 |
17.12 % Si | Shattuckite # | Cu5(SiO3)4(OH)2 | 656.08 |
19.77 % Si | Shcherbakovite # | KKNaTi2O(OH)[Si4O12] | 568.26 |
28.56 % Si | Shibkovite ! | K(Ca,Mn,Na)2(K2-x,[ ]x)2ZnSi12O30 (x~0.8) | 1,180.17 |
26.68 % Si | Shirokshinite ! | K(NaMg2)Si4O10F2 | 421.03 |
14.85 % Si | Shirozulite ! | KMn3(AlSi3)O10(OH,F)2 | 480.43 |
10.34 % Si | Shkatulkalite ! | {(Na,Mn,Ca,[ ])4[Nb2(O,H2O)4Si4O14](OH,F)2}·2(H2O,[ ]) | 1,086.02 |
60.43 % Si | Shlykovite | KCa[Si4O9(OH)]·3H2O | 743.59 |
15.20 % Si | Shuiskite # | Ca2(Mg,Al)(Cr,Al)2(SiO4)(Si2O7)(OH)2·(H2O) | 498.75 |
11.58 % Si | Siderophyllite # | KFe++2Al(Al2Si2)O10(F,OH)2 | 484.90 |
42.50 % Si | Silhydrite | 3SiO2·(H2O) | 198.27 |
100.00 % Si | Silicon | Si | 28.09 |
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( Bold - Valid Mineral Name)
(* - Mineral Name is Not IMA Approved)
(! - New Dana Classification Number Has Been Changed or Added)
(? - IMA Discredited Mineral Species Name)
(# - Grandfathered as valid)