Mineralogy Database

X-Ray Diffraction Table

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Minerals Arranged by X-Ray Powder Diffraction

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.

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Found 143 Records, Sorted by D1 using 1.54056 - CuKa1 for 2θ WHERE (d1 > 6.9188 AND d1 < 7.2012)
D1
Å (2θ)
I1
%)
D2
Å (2θ)
I2
(%)
D3
Å (2θ)
I3
(%)
Mineral Formula
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 3.648(24.38) 150 5.320(16.65) 100 Wakefieldite-(Y) YVO4
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 3.658(24.31) 180 3.556(25.02) 160 Umangite Cu3Se2
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 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 17.100(5.16) 200 10.140(8.71) 120 Metakirchheimerite Co(UO2)2(AsO4)2·8(H2O)
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 5.106(17.35) 140 7.640(11.57) 100 Chenevixite Cu2Fe+++2(AsO4)2(OH)4·(H2O)
7.120(12.42) 200 2.164(41.70) 180 2.202(40.95) 180 Gladite PbCuBi5S9
7.120(12.42) 200 6.080(14.56) 160 6.400(13.83) 140 Uralolite Ca2Be4(PO4)3(OH)3·5(H2O)
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 6.236(14.19) 160 7.060(12.53) 120 Bismuthinite Bi2S3
7.138(12.39) 200 5.010(17.69) 160 6.016(14.71) 160 Boromuscovite KAl2(Si3B)O10(OH,F)2
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 Metauranospinite Ca(UO2)2(AsO4)2·8(H2O)
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 14.300(6.18) 200 4.660(19.03) 180 Dickite Al2Si2O5(OH)4
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 7.180(12.32) 120 5.764(15.36) 110 Lorandite TlAsS2
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 15.260(5.79) 180 6.380(13.87) 180 Chapmanite Sb+++Fe+++2(SiO4)2(OH)
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 17.320(5.10) 140 5.960(14.85) 120 Metalodevite Zn(UO2)2(AsO4)2·10(H2O)
7.180(12.32) 200 5.400(16.40) 180 6.980(12.67) 180 Pierrotite Tl2Sb6As4S16
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)
7.186(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 6.820(12.97) 180 11.100(7.96) 140 Chenite Pb4Cu(SO4)2(OH)6
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 6.360(13.91) 160 10.380(8.51) 140 Tisinalite Na3H3(Mn++,Ca,Fe)TiSi6(O,OH)18·2(H2O)
7.200(12.28) 200 16.680(5.29) 180 8.460(10.45) 80 Metauranocircite Ba(UO2)2(PO4)2·6-8(H2O)

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