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 44 Records, Sorted by D1 using 1.54056 - CuKa1 for 2θ WHERE (d1 > 7.9282 AND d1 < 8.2518)
D1
Å (2θ)
I1
%)
D2
Å (2θ)
I2
(%)
D3
Å (2θ)
I3
(%)
Mineral Formula
7.930(11.15) 200 5.980(14.80) 134 3.176(28.07) 52 Apophyllite-(KOH) KCa4Si8O20(OH,F)·8(H2O)
7.930(11.15) 200 5.942(14.90) 80 10.900(8.10) 40 Platynite (Bi,Pb)3(Se,S)4
7.942(11.13) 200 17.980(4.91) 170 7.820(11.31) 140 Clinoptilolite-Na (Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O)
7.942(11.13) 200 17.980(4.91) 170 7.820(11.31) 140 Clinoptilolite-Ca (Ca,Na,K)2-3Al3(Al,Si)2Si13O36·12(H2O)
7.948(11.12) 200 5.200(17.04) 144 4.368(20.31) 98 Roweite Ca2Mn++2B4O7(OH)6
7.956(11.11) 200 5.164(17.16) 180 8.468(10.44) 180 Hydroxyuvite CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH)
7.960(11.11) 200 6.080(14.56) 60 7.220(12.25) 40 Urea CO(NH2)2
7.960(11.11) 200 3.666(24.26) 180 5.840(15.16) 160 Zharchikhite AlF(OH)2
7.980(11.08) 200 6.500(13.61) 160 6.760(13.09) 140 Scotlandite PbSO3
7.980(11.08) 200 4.520(19.62) 140 7.120(12.42) 140 Naujakasite Na6(Fe++,Mn)Al4Si8O26
7.980(11.08) 200 8.360(10.57) 160 5.940(14.90) 104 Keldyshite Na2-xHxZrSi2O7·n(H2O)
7.980(11.08) 200 4.634(19.14) 112 4.262(20.82) 104 Diaspore AlO(OH)
8.000(11.05) 200 5.288(16.75) 160 6.400(13.83) 160 Reinerite Zn3(As+++O3)2
8.000(11.05) 200 6.516(13.58) 150 6.376(13.88) 150 Orlandiite Pb3(Cl,OH)4(SeO3)·(H2O)
8.000(11.05) 200 7.600(11.63) 140 5.980(14.80) 100 Paracelsian BaAl2Si2O8
8.028(11.01) 200 20.660(4.27) 200 6.870(12.88) 180 Kanemite NaHSi2O5·3(H2O)
8.040(11.00) 200 3.926(22.63) 180 3.992(22.25) 160 Thomsenolite NaCaAlF6·(H2O)
8.040(11.00) 200 4.592(19.31) 160 4.754(18.65) 120 Barstowite Pb4(CO3)Cl6·(H2O)
8.060(10.97) 200 5.108(17.35) 180 5.940(14.90) 120 Kipushite (Cu,Zn)5Zn(PO4)2(OH)6·(H2O)
8.060(10.97) 200 23.200(3.81) 64 4.228(20.99) 32 Tschernichite (Ca,Na)(Si6Al2)O16·4-8(H2O)
8.080(10.94) 200 5.140(17.24) 160 6.660(13.28) 160 Vrbaite Tl4Hg3Sb2As8S20
8.100(10.91) 200 4.970(17.83) 40 5.682(15.58) 26 Cristobalite SiO2
8.108(10.90) 200 18.200(4.85) 200 6.056(14.61) 160 Barrerite (Na,K,Ca)2Al2Si7O18·6(H2O)
8.120(10.89) 200 4.640(19.11) 130 5.100(17.37) 120 Ramsdellite MnO2
8.120(10.89) 200 3.628(24.52) 120 3.314(26.88) 80 Burtite CaSn(OH)6
8.140(10.86) 200 5.324(16.64) 120 6.990(12.65) 100 Diomignite Li2B4O7
8.152(10.84) 200 5.612(15.78) 136 6.106(14.49) 134 Parascorodite Fe+++AsO4·2(H2O)
8.158(10.84) 200 16.300(5.42) 180 5.580(15.87) 170 Kinichilite Mg0.5[Mn++Fe+++(TeO3)3]·4.5(H2O)
8.160(10.83) 200 11.860(7.45) 142 13.360(6.61) 142 Legrandite Zn2(AsO4)(OH)·(H2O)
8.160(10.83) 200 9.440(9.36) 160 12.980(6.80) 160 Rosslerite Mg(AsO3OH)·7(H2O)
8.160(10.83) 200 5.020(17.65) 180 3.640(24.43) 160 Gutsevichite Al3(PO4)2(OH)3·8(H2O)
8.180(10.81) 200 5.300(16.71) 160 5.092(17.40) 140 Bracewellite Cr+++O(OH)
8.200(10.78) 200 25.800(3.42) 180 5.920(14.95) 160 Gmelinite-Ca (Ca,Na2)Al2Si4O12·6(H2O)
8.200(10.78) 200 7.468(11.84) 180 9.630(9.18) 160 Deloryite Cu++4(UO2)(MoO4)2(OH)6
8.200(10.78) 200 5.630(15.73) 160 16.380(5.39) 130 Levyne-Ca (Ca,Na2,K2)Al2Si4O12·6(H2O)
8.200(10.78) 200 5.630(15.73) 160 16.380(5.39) 130 Levyne-Na (Na2,Ca,K2)Al2Si4O12·6(H2O)
8.200(10.78) 200 5.300(16.71) 150 5.760(15.37) 100 Bischofite MgCl2·6(H2O)
8.200(10.78) 200 4.654(19.05) 142 6.200(14.27) 142 Behierite (Ta,Nb)BO4
8.200(10.78) 200 25.800(3.42) 180 5.920(14.95) 160 Gmelinite-Na (Na2,Ca)Al2Si4O12·6(H2O)
8.214(10.76) 200 8.656(10.21) 180 7.636(11.58) 100 Tridymite SiO2
8.218(10.76) 200 8.434(10.48) 174 11.674(7.57) 132 Quenstedtite Fe+++2(SO4)3·10(H2O)
8.218(10.76) 200 5.810(15.24) 180 14.282(6.18) 160 Brannockite KSn2Li3Si12O30
8.220(10.75) 200 8.640(10.23) 200 9.660(9.15) 200 Kalinite KAl(SO4)2·11(H2O)
8.230(10.74) 200 6.220(14.23) 168 4.656(19.05) 98 Schiavinatoite (Nb,Ta)BO4

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