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 39 Records, Sorted by D1 using 1.54056 - CuKa1 for 2θ WHERE (d1 > 11.564 AND d1 < 12.036)
D1
Å (2θ)
I1
%)
D2
Å (2θ)
I2
(%)
D3
Å (2θ)
I3
(%)
Mineral Formula
11.580(7.63) 200 5.798(15.27) 164 18.400(4.80) 78 Hydromagnesite Mg5(CO3)4(OH)2·4(H2O)
11.590(7.62) 200 6.996(12.64) 180 7.762(11.39) 96 Bobjonesite VO(SO4)(H2O)3
11.600(7.61) 200 10.480(8.43) 180 15.240(5.79) 180 Indigirite Mg2Al2(CO3)4(OH)2·15(H2O)
11.622(7.60) 200 18.636(4.74) 178 11.358(7.78) 86 Hellyerite NiCO3·6(H2O)
11.622(7.60) 200 10.064(8.78) 146 5.032(17.61) 138 Panichiite (NH4)2SnCl6
11.648(7.58) 200 11.732(7.53) 160 6.326(13.99) 30 Hydromolysite FeCl3·6(H2O)
11.680(7.56) 200 8.280(10.68) 140 7.980(11.08) 120 Anthonyite Cu(OH,Cl)2·3(H2O)
11.680(7.56) 200 5.440(16.28) 144 9.960(8.87) 122 Jokokuite MnSO4·5(H2O)
11.686(7.56) 200 19.408(4.55) 200 6.278(14.10) 180 Dickthomssenite Mg(V+++++2O6)·7(H2O)
11.700(7.55) 200 6.060(14.61) 190 4.552(19.48) 90 Beaverite PbCu++(Fe+++,Al)2(SO4)2(OH)6
11.700(7.55) 200 5.180(17.10) 160 6.320(14.00) 50 Scacchite MnCl2
11.740(7.52) 200 4.742(18.70) 100 3.892(22.83) 90 Leonite K2Mg(SO4)2·4(H2O)
11.760(7.51) 200 6.120(14.46) 180 4.500(19.71) 120 Benauite HSrFe+++3(PO4)2(OH)6
11.760(7.51) 200 5.888(15.03) 156 6.160(14.37) 124 Elsmoreite WO3·0.5(H2O)
11.780(7.50) 200 7.320(12.08) 180 5.852(15.13) 160 Clinochalcomenite CuSeO3·2(H2O)
11.780(7.50) 200 16.020(5.51) 200 6.280(14.09) 180 Dewindtite Pb3[H(UO2)3O2(PO4)2]2·12(H2O)
11.780(7.50) 200 5.880(15.05) 100 5.140(17.24) 20 Chloromagnesite MgCl2
11.794(7.49) 200 25.540(3.46) 180 5.742(15.42) 160 Mourite U++++Mo++++++5O12(OH)10
11.800(7.49) 200 15.900(5.55) 162 7.882(11.22) 142 Deliensite Fe++(UO2)2(SO4)2(OH)2·3(H2O)
11.820(7.47) 200 19.000(4.65) 180 6.320(14.00) 140 Zanazziite Ca2(Mg,Fe++)(Mg,Fe++,Al,Mn,Fe+++)4Be4(PO4)6(OH)4·6(H2O)
11.831(7.47) 200 15.721(5.62) 174 8.744(10.11) 172 Kochsandorite CaAl2(CO3)2(OH)4·H2O
11.840(7.46) 200 5.568(15.90) 172 6.340(13.96) 106 Atencioite Ca2Fe++[ ]Mg2Fe++2Be4(PO4)6(OH)4·6H2O
11.840(7.46) 200 6.800(13.01) 160 5.920(14.95) 120 Studtite [(UO2)O2(H2O)2](H2O)2
11.852(7.45) 200 13.546(6.52) 126 10.068(8.78) 116 Metarossite CaV2O6·2(H2O)
11.860(7.45) 200 6.980(12.67) 180 4.720(18.78) 140 Cesbronite-x Cu5(TeO3)2(OH)6·2(H2O)
11.868(7.44) 200 6.980(12.67) 184 9.778(9.04) 142 Cesbronite Cu5(TeO3)2(OH)6·2(H2O)
11.880(7.44) 200 5.940(14.90) 86 10.420(8.48) 74 Schertelite (NH4)2MgH2(PO4)2·4(H2O)
11.886(7.43) 200 9.632(9.17) 130 6.338(13.96) 88 Ruifrancoite Ca2([ ],Mn)2(Fe+++,Mn,Mg)4Be4(PO4)6(OH)4·6H2O
11.900(7.42) 200 6.020(14.70) 180 12.920(6.84) 160 Paraumbite K3Zr2HSi6O18·n(H2O) n=3 to 7
11.920(7.41) 200 19.160(4.61) 180 6.360(13.91) 140 Roscherite Ca(Mn++,Fe++)5Be4(PO4)6(OH)4·6(H2O)
11.940(7.40) 200 12.220(7.23) 160 6.180(14.32) 140 Nabesite Na2BeSi4O10·4(H2O)
11.940(7.40)
-
8.660(10.21)
-
8.420(10.50)
-
Kumdykolite NaAlSi3O8
11.960(7.39) 200 6.304(14.04) 180 18.960(4.66) 180 Guimaraesite Ca2(Zn,Mg,Fe)5Be4(PO4)6(OH)4·6H2O
11.980(7.37) 200 7.160(12.35) 180 10.942(8.07) 140 Melanophlogite SiO2·n(C,H,O,S)
11.988(7.37) 200 5.890(15.03) 164 15.808(5.59) 140 IMA2009-038 Ca4Al2(PO4)2F8·5H2O
11.996(7.36) 200 19.150(4.61) 106 6.384(13.86) 88 Footemineite Ca2Mn++Mn++2Mn++2Be4(PO4)6(OH)4·6H2O
12.012(7.35) 200 6.006(14.74) 140 6.094(14.52) 120 Olmsteadite KFe++2(Nb,Ta)(PO4)2O2·2(H2O)
12.020(7.35) 200 6.010(14.73) 160 6.108(14.49) 140 Johnwalkite K(Mn++,Fe+++,Fe++)2(Nb,Ta)(PO4)2O2((H2O),OH)2
12.030(7.34) 200 7.388(11.97) 134 4.280(20.74) 60 Mcguinnessite (Mg,Cu)2(CO3)(OH)2

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