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X-Ray Diffraction Table |
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X-Ray Diffraction Table |
See Help on X-Ray Diffraction.
Powder X-ray Diffraction (XRD) is one of the primary techniques used by mineralogists and solid state chemists to examine the physico-chemical make-up of unknown materials. This data is represented in a collection of single-phase X-ray powder diffraction patterns for the three most intense D values in the form of tables of interplanar spacings (D), relative intensities (I/Io), mineral name and chemical formulae
The XRD technique takes a sample of the material and places a powdered sample in a holder, then the sample is illuminated with x-rays of a fixed wave-length and the intensity of the reflected radiation is recorded using a goniometer. This data is then analyzed for the reflection angle to calculate the inter-atomic spacing (D value in Angstrom units - 10-8 cm). The intensity(I) is measured to discriminate (using I ratios) the various D spacings and the results are compared to this table to identify possible matches. Note: 2 theta (Θ) angle calculated from the Bragg Equation, 2 Θ = 2(arcsin(n λ/(2d)) where n=1
For more information about this technique, see X-Ray Analysis of a Solid or take an internet course at Birkbeck College On-line Courses. Many thanks to Frederic Biret for these data.
| D1 Å (2θ) |
I1 %) |
D2 Å (2θ) |
I2 (%) |
D3 Å (2θ) |
I3 (%) |
Mineral | Formula |
| 7.010(12.62) | 200 | 9.412(9.39) | 200 | 9.535(9.27) | 200 | Acuminite | SrAlF4(OH)·(H2O) |
| 7.010(12.62) | 200 | 13.216(6.68) | 156 | 10.540(8.38) | 120 | Uklonskovite | NaMg(SO4)F·2(H2O) |
| 7.012(12.61) | 200 | 21.040(4.20) | 180 | 5.556(15.94) | 160 | Niobophyllite | K2Na(Fe++,Mn)7(Nb,Ti)2Si8O26(OH)4(F,O) |
| 7.020(12.60) | 200 | 3.782(23.50) | 66 | 4.758(18.63) | 44 | Anatase | TiO2 |
| 7.020(12.60) | 200 | 8.420(10.50) | 200 | 9.700(9.11) | 100 | Bilinite | Fe++Fe+++2(SO4)4·22(H2O) |
| 7.020(12.60) | 200 | 6.564(13.48) | 164 | 6.476(13.66) | 142 | Stibioclaudetite | AsSbO3 |
| 7.020(12.60) | 200 | 21.100(4.18) | 180 | 5.286(16.76) | 160 | Hydroastrophyllite | (H3O,K)2Ca(Fe+++,Mn)5-6Ti2Si8O26(OH)4F |
| 7.020(12.60) | 200 | 4.280(20.74) | 180 | 5.840(15.16) | 180 | Lillianite | Pb3Bi2S6 |
| 7.020(12.60) | 200 | 4.688(18.91) | 160 | 5.560(15.93) | 140 | Twinnite | Pb(Sb,As)2S4 |
| 7.020(12.60) | 200 | 5.800(15.26) | 180 | 6.940(12.74) | 160 | Brookite | TiO2 |
| 7.020(12.60) | 200 | 4.302(20.63) | 100 | 3.670(24.23) | 60 | Tiemannite | HgSe |
| 7.020(12.60) | 200 | 5.374(16.48) | 140 | 5.560(15.93) | 120 | Ericssonite | BaMn++2Fe+++O[Si2O7](OH) |
| 7.022(12.60) | 200 | 5.740(15.42) | 120 | 6.206(14.26) | 90 | Davreuxite | MnAl6Si4O17(OH)2 |
| 7.024(12.59) | 200 | 6.404(13.82) | 156 | 6.030(14.68) | 138 | Laffittite | AgHgAsS3 |
| 7.024(12.59) | 200 | 28.200(3.13) | 200 | 9.420(9.38) | 140 | Borocookeite | Li(1+3x)Al(4-x)(BSi3)O10(OH,F)8 [x = 0-0.33] |
| 7.026(12.59) | 200 | 14.080(6.27) | 200 | 5.028(17.62) | 180 | Orthochamosite | (Fe++,Mg,Fe+++)5Al(Si3Al)O10(OH,O)8 |
| 7.030(12.58) | 200 | 8.920(9.91) | 86 | 5.210(17.00) | 72 | Grossite | CaAl4O7 |
| 7.032(12.58) | 200 | 4.448(19.94) | 140 | 10.300(8.58) | 110 | Azurite | Cu3(CO3)2(OH)2 |
| 7.032(12.58) | 200 | 6.342(13.95) | 160 | 7.338(12.05) | 120 | Hashemite | Ba(Cr,S)O4 |
| 7.040(12.56) | 200 | 12.260(7.20) | 160 | 7.140(12.39) | 120 | Tugtupite | Na4AlBeSi4O12Cl |
| 7.040(12.56) | 200 | 5.094(17.39) | 162 | 7.890(11.21) | 144 | Sarcopside | (Fe++,Mn,Mg)3(PO4)2 |
| 7.040(12.56) | 200 | 14.120(6.25) | 200 | 3.850(23.08) | 140 | Amesite | Mg2Al(SiAl)O5(OH)4 |
| 7.040(12.56) | 200 | 15.380(5.74) | 190 | 6.720(13.16) | 160 | Hoelite | (C6H4)2(CO)2 |
| 7.040(12.56) | 200 | 5.590(15.84) | 180 | 8.380(10.55) | 100 | Guettardite | Pb(Sb,As)2S4 |
| 7.040(12.56) | 200 | 8.660(10.21) | 200 | 9.680(9.13) | 80 | Dietrichite | (Zn,Fe++,Mn)Al2(SO4)4·22(H2O) |
| 7.040(12.56) | 200 | 9.640(9.17) | 180 | 7.580(11.66) | 70 | Apjohnite | MnAl2(SO4)4·22(H2O) |
| 7.040(12.56) | 200 | 14.100(6.26) | 200 | 5.040(17.58) | 180 | Chamosite | (Fe++,Mg,Fe+++)5Al(Si3Al)O10(OH,O)8 |
| 7.054(12.54) | 200 | 6.794(13.02) | 142 | 4.626(19.17) | 86 | Podlesnoite | BaCa2(CO3)2F2 |
| 7.060(12.53) | 200 | 9.380(9.42) | 180 | 5.300(16.71) | 160 | Thorite | ThSiO4 |
| 7.060(12.53) | 200 | 22.200(3.98) | 160 | 11.100(7.96) | 100 | Kahlerite | Fe++(UO2)2(AsO4)2·10-12(H2O) |
| 7.060(12.53) | 200 | 5.834(15.17) | 120 | 5.210(17.00) | 100 | Susannite | Pb4(SO4)(CO3)2(OH)2 |
| 7.060(12.53) | 200 | 5.834(15.17) | 120 | 5.210(17.00) | 100 | Leadhillite | Pb4(SO4)(CO3)2(OH)2 |
| 7.062(12.52) | 200 | 20.840(4.24) | 180 | 4.418(20.08) | 160 | Chelkarite | CaMgB2O4Cl2·7(H2O) (?) |
| 7.070(12.51) | 200 | 6.900(12.82) | 140 | 4.106(21.63) | 100 | Strontianite | SrCO3 |
| 7.074(12.50) | 200 | 7.562(11.69) | 130 | 19.020(4.64) | 100 | Ferrierite-Na | (Na,K)2Mg(Si,Al)18O36·9(H2O) |
| 7.074(12.50) | 200 | 7.562(11.69) | 130 | 19.020(4.64) | 100 | Ferrierite-Mg | (Mg,Na,K)2Mg(Si,Al)18O36·9(H2O) |
| 7.074(12.50) | 200 | 6.112(14.48) | 194 | 5.779(15.32) | 192 | Geocronite | Pb14(Sb,As)6S23 |
| 7.074(12.50) | 200 | 9.390(9.41) | 180 | 5.306(16.69) | 120 | Thorogummite | Th(SiO4)1-x(OH)4x |
| 7.074(12.50) | 200 | 7.562(11.69) | 130 | 19.020(4.64) | 100 | Ferrierite-K | (K,Na)2Mg(Si,Al)18O36·9(H2O) |
| 7.078(12.50) | 200 | 5.212(17.00) | 160 | 4.160(21.34) | 100 | Santanaite | Pb++9Pb++++2CrO16 |
| 7.080(12.49) | 200 | 6.820(12.97) | 180 | 11.140(7.93) | 140 | Voltaite | K2Fe++5Fe+++3Al(SO4)12·18(H2O) |
| 7.080(12.49) | 150 | 5.306(16.69) | 140 | 6.120(14.46) | 110 | Ellenbergerite | Mg6TiAl6Si8O28(OH)10 |
| 7.080(12.49) | 200 | 7.320(12.08) | 200 | 8.000(11.05) | 180 | Nuffieldite | Pb2Cu(Pb,Bi)Bi2S7 |
| 7.080(12.49) | 200 | 5.200(17.04) | 180 | 3.784(23.49) | 160 | Montanite | Bi2Te++++++O6·2(H2O) |
| 7.080(12.49) | 200 | 12.960(6.81) | 160 | 8.480(10.42) | 140 | Nealite-(H2O) | Pb4Fe++(As+++O3)2Cl4·2(H2O) |
| 7.080(12.49) | 200 | 6.820(12.97) | 180 | 5.440(16.28) | 100 | Kobellite | Pb22Cu4(Bi,Sb)30S69 |
| 7.084(12.48) | 200 | 12.960(6.81) | 160 | 8.474(10.43) | 140 | Nealite | Pb4Fe++(As+++++O4)2Cl4 |
| 7.090(12.47) | 200 | 7.808(11.32) | 160 | 5.838(15.16) | 140 | Junoite | Pb3Cu2Bi8(S,Se)16 |
| 7.098(12.46) | 200 | 5.240(16.91) | 190 | 8.374(10.56) | 150 | Chalcocyanite | CuSO4 |
| 7.100(12.46) | 200 | 5.020(17.65) | 130 | 4.096(21.68) | 40 | Paralstonite | BaCa(CO3)2 |
| 7.100(12.46) | 200 | 5.014(17.67) | 70 | 4.100(21.66) | 46 | Alstonite | BaCa(CO3)2 |
| 7.108(12.44) | 200 | 10.962(8.06) | 170 | 6.782(13.04) | 126 | Ramanite-(Rb) | Rb[B5O6(OH)4]·2H2O |
| 7.114(12.43) | 200 | 6.924(12.77) | 140 | 6.844(12.92) | 110 | Matteuccite | NaHSO4·(H2O) |
| 7.116(12.43) | 200 | 6.202(14.27) | 164 | 7.948(11.12) | 144 | Svenekite | Ca(H2AsO4)2 |
| 7.118(12.42) | 200 | 14.260(6.19) | 94 | 6.156(14.38) | 90 | Natronambulite | (Na,Li)Mn++4[Si5O14(OH)] |
| 7.120(12.42) | 200 | 6.940(12.74) | 116 | 9.600(9.20) | 104 | Museumite | Pb2(Pb,Sb)2S8[Te,Au]2 |
| 7.120(12.42) | 200 | 3.636(24.46) | 110 | 5.280(16.78) | 100 | Cahnite | Ca2B(AsO4)(OH)4 |
| 7.120(12.42) | 200 | 5.106(17.35) | 140 | 7.640(11.57) | 100 | Chenevixite | Cu2Fe+++2(AsO4)2(OH)4·(H2O) |
| 7.120(12.42) | 200 | 17.620(5.01) | 160 | 11.640(7.59) | 100 | Cuprocopiapite | CuFe+++4(SO4)6(OH)2·20(H2O) |
| 7.120(12.42) | 200 | 2.164(41.70) | 180 | 2.202(40.95) | 180 | Gladite | PbCuBi5S9 |
| 7.120(12.42) | 200 | 4.960(17.87) | 160 | 19.400(4.55) | 160 | IMA2009-009 | KNa2Li(Mg,Fe)2Ti2Si8O24 |
| 7.120(12.42) | 200 | 17.100(5.16) | 200 | 10.140(8.71) | 120 | Metakirchheimerite | Co(UO2)2(AsO4)2·8(H2O) |
| 7.120(12.42) | 200 | 11.980(7.37) | 56 | 8.700(10.16) | 46 | Mikasaite | Fe+++2(SO4)3 |
| 7.120(12.42) | 200 | 5.820(15.21) | 160 | 3.558(25.01) | 130 | Sulphohalite | Na6(SO4)2FCl |
| 7.120(12.42) | 200 | 3.658(24.31) | 180 | 3.556(25.02) | 160 | Umangite | Cu3Se2 |
| 7.120(12.42) | 200 | 6.080(14.56) | 160 | 6.400(13.83) | 140 | Uralolite | Ca2Be4(PO4)3(OH)3·5(H2O) |
| 7.120(12.42) | 200 | 3.648(24.38) | 150 | 5.320(16.65) | 100 | Wakefieldite-(Y) | YVO4 |
| 7.122(12.42) | 200 | 5.430(16.31) | 78 | 6.116(14.47) | 78 | Carlosruizite | K6(Na,K)4Na6Mg10(Se++++++O4)12(IO3)12·12(H2O) |
| 7.124(12.41) | 200 | 5.666(15.63) | 160 | 9.346(9.46) | 110 | Parisite-(Ce) | Ca(Ce,La)2(CO3)3F2 |
| 7.128(12.41) | 200 | 5.308(16.69) | 150 | 5.922(14.95) | 140 | Danburite | CaB2(SiO4)2 |
| 7.138(12.39) | 200 | 5.010(17.69) | 160 | 6.016(14.71) | 160 | Boromuscovite | KAl2(Si3B)O10(OH,F)2 |
| 7.138(12.39) | 200 | 6.236(14.19) | 160 | 7.060(12.53) | 120 | Bismuthinite | Bi2S3 |
| 7.140(12.39) | 200 | 17.300(5.10) | 200 | 6.620(13.36) | 180 | Metauranospinite | Ca(UO2)2(AsO4)2·8(H2O) |
| 7.140(12.39) | 200 | 6.478(13.66) | 154 | 5.844(15.15) | 134 | Roedderite | (Na,K)2(Mg,Fe++)5Si12O30 |
| 7.140(12.39) | 200 | 17.300(5.10) | 200 | 6.620(13.36) | 180 | Metauranopilite | (UO2)6(SO4)(OH)10·5(H2O) |
| 7.140(12.39) | 200 | 10.060(8.78) | 160 | 17.780(4.97) | 160 | Heinrichite | Ba(UO2)2(AsO4)2·10-12(H2O) |
| 7.146(12.38) | 200 | 4.270(20.79) | 180 | 5.616(15.77) | 160 | Chabourneite | (Tl,Pb)21(Sb,As)91S147 |
| 7.148(12.37) | 200 | 5.812(15.23) | 90 | 7.234(12.22) | 80 | Matlockite | PbFCl |
| 7.160(12.35) | 200 | 6.960(12.71) | 160 | 14.400(6.13) | 160 | Magnesiozippeite | Mg(H2O)3.5(UO2)2(SO4)O2 |
| 7.160(12.35) | 200 | 5.182(17.10) | 180 | 3.408(26.13) | 160 | Krivovichevite | Pb3[Al(OH)6](SO4)(OH) |
| 7.160(12.35) | 200 | 14.300(6.18) | 200 | 4.660(19.03) | 180 | Dickite | Al2Si2O5(OH)4 |
| 7.160(12.35) | 200 | 15.260(5.79) | 180 | 6.380(13.87) | 180 | Chapmanite | Sb+++Fe+++2(SiO4)2(OH) |
| 7.160(12.35) | 200 | 7.180(12.32) | 120 | 5.764(15.36) | 110 | Lorandite | TlAsS2 |
| 7.162(12.35) | 200 | 7.780(11.36) | 146 | 5.556(15.94) | 112 | Cotunnite | PbCl2 |
| 7.162(12.35) | 200 | 4.382(20.25) | 112 | 3.740(23.77) | 94 | Frankdicksonite | BaF2 |
| 7.174(12.33) | 200 | 6.278(14.10) | 50 | 14.420(6.12) | 40 | Clinoclase | Cu3(AsO4)(OH)3 |
| 7.180(12.32) | 200 | 20.600(4.29) | 200 | 10.400(8.50) | 140 | Zeunerite | Cu(UO2)2(AsO4)2·10-16(H2O) |
| 7.180(12.32) | 200 | 17.100(5.16) | 180 | 8.580(10.30) | 120 | Metakahlerite | Fe++(UO2)2(AsO4)2·8(H2O) |
| 7.180(12.32) | 200 | 5.400(16.40) | 180 | 6.980(12.67) | 180 | Pierrotite | Tl2Sb6As4S16 |
| 7.180(12.32) | 200 | 17.320(5.10) | 140 | 5.960(14.85) | 120 | Metalodevite | Zn(UO2)2(AsO4)2·10(H2O) |
| 7.186(12.31) | 200 | 6.996(12.64) | 100 | 4.974(17.82) | 64 | Cerussite | PbCO3 |
| 7.186(12.31) | 200 | 6.632(13.34) | 180 | 6.048(14.63) | 160 | Althausite | Mg2(PO4)(OH,F,O) |
| 7.198(12.29) | 200 | 11.608(7.61) | 148 | 5.627(15.74) | 132 | Uzonite | As4S5 |
| 7.200(12.28) | 200 | 16.680(5.29) | 180 | 8.460(10.45) | 80 | Metauranocircite | Ba(UO2)2(PO4)2·6-8(H2O) |
| 7.200(12.28) | 200 | 3.680(24.16) | 180 | 6.260(14.14) | 160 | Orlymanite | Ca4Mn++3Si8O20(OH)6·2(H2O) |
| 7.200(12.28) | 200 | 6.820(12.97) | 180 | 11.100(7.96) | 140 | Chenite | Pb4Cu(SO4)2(OH)6 |
| 7.200(12.28) | 200 | 6.360(13.91) | 160 | 10.380(8.51) | 140 | Tisinalite | Na3H3(Mn++,Ca,Fe)TiSi6(O,OH)18·2(H2O) |
| 7.214(12.26) | 200 | 5.598(15.82) | 170 | 5.554(15.94) | 80 | Kamaishilite | Ca2Al2SiO6(OH)2 |
| 7.220(12.25) | 200 | 14.500(6.09) | 200 | 6.340(13.96) | 160 | Metavandendriesscheite | PbU7O22·n(H2O)(n<12) |
| 7.220(12.25) | 200 | 14.500(6.09) | 200 | 6.340(13.96) | 150 | Vandendriesscheite | Pb(UO2)10O6(OH)11·11(H2O) |