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 28 Records, Sorted by D1 using 1.54056 - CuKa1 for 2θ WHERE (d1 > 13.2006 AND d1 < 13.7394)
D1
Å (2θ)
I1
%)
D2
Å (2θ)
I2
(%)
D3
Å (2θ)
I3
(%)
Mineral Formula
13.234(6.67) 200 7.424(11.91) 160 8.232(10.74) 160 Anorthominasragrite V++++O(SO4)(H2O)5
13.248(6.67) 200 5.844(15.15) 144 9.636(9.17) 122 Arupite (Ni,Fe++)3(PO4)2·8(H2O)
13.320(6.63) 200 5.440(16.28) 140 6.280(14.09) 100 Hydrozincite Zn5(CO3)2(OH)6
13.340(6.62) 200 5.382(16.46) 140 5.896(15.01) 140 Pakhomovskyite Co3(PO4)2·8(H2O)
13.360(6.61) 200 11.820(7.47) 160 6.012(14.72) 140 Tinsleyite KAl2(PO4)2(OH)·2(H2O)
13.384(6.60) 200 5.424(16.33) 100 6.010(14.73) 100 Hornesite Mg3(AsO4)2·8(H2O)
13.400(6.59) 200 17.220(5.13) 160 8.320(10.62) 120 Bijvoetite-(Y) (Y,REE)8(H2O)25(UO2)16O8(OH)8(CO3)16·14(H2O)
13.400(6.59) 200 7.360(12.01) 160 7.440(11.89) 160 Gebhardite Pb8(As+++2O5)2OCl6
13.406(6.59) 200 6.448(13.72) 70 15.908(5.55) 54 Kottigite Zn3(AsO4)2·8(H2O)
13.420(6.58) 200 6.712(13.18) 184 10.720(8.24) 170 Hungchaoite MgB4O5(OH)4·7(H2O)
13.420(6.58) 200 9.720(9.09) 80 17.180(5.14) 80 Metavivianite (Fe++3-x,Fe+++x)(PO4)2(OH)x·8-x(H2O), x=0.5
13.420(6.58) 200 5.398(16.41) 140 5.912(14.97) 120 Baricite (Mg,Fe++)3(PO4)2·8(H2O)
13.440(6.57) 200 6.006(14.74) 94 6.454(13.71) 84 Erythrite Co3(AsO4)2·8(H2O)
13.460(6.56) 200 7.440(11.89) 180 8.320(10.62) 120 Astrocyanite-(Ce) Cu2(Ce,Nd,La)2(UO2)(CO3)5(OH)2·1.5(H2O)
13.500(6.54) 200 6.050(14.63) 100 16.114(5.48) 60 Parasymplesite Fe++3(AsO4)2·8(H2O)
13.560(6.51) 200 5.220(16.97) 160 7.360(12.01) 140 Aurichalcite (Zn,Cu)5(CO3)2(OH)6
13.580(6.50) 200 6.780(13.05) 62 10.360(8.53) 18 Nobleite CaB6O9(OH)2·3(H2O)
13.580(6.50) 200 6.122(14.46) 140 11.980(7.37) 140 Leucophosphite KFe+++2(PO4)2(OH)·2(H2O)
13.580(6.50) 200 11.980(7.37) 180 6.100(14.51) 90 Spheniscidite (NH4,K)(Fe+++,Al)2(PO4)2(OH)·2(H2O)
13.580(6.50) 200 15.000(5.89) 32 17.940(4.92) 32 Symplesite Fe++3(AsO4)2·8(H2O)
13.600(6.49) 200 5.420(16.34) 134 5.940(14.90) 134 Vivianite Fe++3(PO4)2·8(H2O)
13.620(6.48) 200 4.478(19.81) 160 10.166(8.69) 160 Paraotwayite Ni(OH)2-x(SO4,CO3)0.5x x=.5
13.620(6.48) 200 10.800(8.18) 180 17.360(5.09) 180 Liebigite Ca2(UO2)(CO3)3·11(H2O)
13.620(6.48) 200 5.698(15.54) 180 5.966(14.84) 160 Rouseite Pb2Mn++(As+++O3)2·2(H2O)
13.620(6.48) 200 6.800(13.01) 180 5.900(15.00) 160 Boltwoodite HK(UO2)(SiO4)·1.5(H2O)
13.660(6.47) 200 8.660(10.21) 196 5.408(16.38) 102 Gravegliaite Mn++(SO3)·3(H2O)
13.680(6.46) 200 4.438(19.99) 60 8.020(11.02) 40 Ernienickelite NiMn++++3O7·3(H2O)
13.680(6.46) 200 11.340(7.79) 160 5.474(16.18) 120 Otwayite Ni2(CO3)(OH)2·(H2O)

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