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 29 Records, Sorted by D1 using 1.54056 - CuKa1 for 2θ WHERE (d1 > 10.976 AND d1 < 11.424)
D1
Å (2θ)
I1
%)
D2
Å (2θ)
I2
(%)
D3
Å (2θ)
I3
(%)
Mineral Formula
10.980(8.05) 200 6.420(13.78) 150 6.520(13.57) 120 Mirabilite Na2SO4·10(H2O)
10.992(8.04) 200 22.040(4.01) 180 8.158(10.84) 100 Niedermayrite Cu4Cd(SO4)2(OH)6·4(H2O)
11.000(8.03) 200 17.520(5.04) 200 14.620(6.04) 180 Swartzite CaMg(UO2)(CO3)3·12(H2O)
11.000(8.03) 200 12.180(7.25) 180 10.400(8.50) 140 Refikite C19H31COOH
11.004(8.03) 200 16.398(5.38) 200 5.766(15.35) 160 Bobkingite Cu5Cl2(OH)8(H2O)2
11.040(8.00) 200 5.668(15.62)
-
15.840(5.57)
-
Caoxite Ca(C2O4)·3(H2O)
11.042(8.00) 200 3.682(24.15) 180 4.778(18.55) 180 Tarkianite (Cu,Fe)(Re,Mo)4S8
11.060(7.99) 200 5.524(16.03) 140 8.456(10.45) 120 Rokuhnite Fe++Cl2·(H2O)
11.080(7.97) 200 5.540(15.98) 180 9.060(9.75) 180 Andalusite Al2SiO5 = Al[6]Al[5]OSiO4
11.080(7.97) 200 20.760(4.25) 67 13.180(6.70) 66 Hartite C20H34
11.100(7.96) 200 15.480(5.70) 180 13.760(6.42) 160 Roubaultite Cu2(UO2)3(CO3)2O2(OH)2·4(H2O)
11.106(7.95) 200 5.516(16.05) 104 5.570(15.90) 104 Belloite Cu(OH)Cl
11.180(7.90) 200 6.840(12.93) 144 7.124(12.41) 132 IMA2009-040 (NH4)2Mg5Fe3+3Al(SO4)12·18H2O
11.180(7.90) 200 5.080(17.44) 160 6.160(14.37) 160 Bandylite CuB(OH)4Cl
11.180(7.90) 200 5.848(15.14) 80 10.980(8.05) 80 Nickelbischofite NiCl2·6(H2O)
11.200(7.89) 200 29.800(2.96) 200 6.598(13.41) 160 Szymanskiite Hg+16(Ni,Mg)6(H3O)8(CO3)12·3(H2O)
11.230(7.87) 200 5.184(17.09) 180 7.102(12.45) 160 Tunisite NaCa2Al4(CO3)4(OH)8Cl
11.300(7.82) 200 14.592(6.05) 150 11.852(7.45) 140 Ceruleite Cu2Al7(AsO4)4(OH)13·12(H2O)
11.320(7.80) 200 5.180(17.10) 90 10.040(8.80) 90 Magnesiocarpholite MgAl2Si2O6(OH)4
11.320(7.80) 200 5.920(14.95) 190 7.000(12.64) 130 Orpheite PbAl3(PO4,SO4)2(OH)6 (?)
11.320(7.80) 200 4.800(18.47) 160 5.140(17.24) 140 Botallackite Cu2Cl(OH)3
11.338(7.79) 200 5.654(15.66) 188 7.134(12.40) 180 Kanonaite (Mn+++,Al)AlSiO5
11.340(7.79) 200 15.860(5.57) 200 26.000(3.40) 200 Andersonite Na2Ca(UO2)(CO3)3·6(H2O)
11.360(7.78) 200 3.150(28.31) 120 5.520(16.04) 120 Yushkinite V1-xS·n(Mg,Al)(OH)2
11.380(7.76) 200 6.852(12.91) 160 5.984(14.79) 150 Ahlfeldite (Ni,Co)SeO3·2(H2O)
11.400(7.75) 200 12.700(6.95) 190 6.560(13.49) 60 Kladnoite C6H4(CO)2NH
11.400(7.75) 200 6.770(13.07) 32 3.380(26.35) 28 Dawsonite NaAl(CO3)(OH)2
11.400(7.75) 200 7.080(12.49) 182 5.720(15.48) 156 Acetamide CO(CH3)(NH2)
11.420(7.74) 200 22.800(3.87) 200 6.740(13.12) 120 Valleriite 4(Fe,Cu)S·3(Mg,Al)(OH)2

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