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 > 22.67034 AND d1 < 23.59566)
D1
Å (2θ)
I1
%)
D2
Å (2θ)
I2
(%)
D3
Å (2θ)
I3
(%)
Mineral Formula
22.680(3.89) 200 8.740(10.11) 158 8.020(11.02) 114 Gottardiite Na3Mg3Ca5Al19Si117O272·93(H2O)
22.740(3.88) 200 5.798(15.27) 100 6.090(14.53) 80 Defernite Ca6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x (x=0,5)
22.820(3.87) 200 13.220(6.68) 146 8.644(10.22) 134 Erionite-Ca (Ca,K2,Na2)2[Al4Si14O36]·15(H2O)
22.820(3.87) 200 13.220(6.68) 146 8.644(10.22) 134 Erionite-Na (Na2,K2,Ca)2[Al4Si14O36]·15(H2O)
22.820(3.87) 200 13.220(6.68) 146 8.644(10.22) 134 Erionite-K (K2,Ca,Na2)2[Al4Si14O36]·15(H2O)
22.980(3.84) 200 6.540(13.53) 180 12.460(7.09) 180 Phaunouxite Ca3(AsO4)·11(H2O)
23.000(3.84) 200 5.760(15.37) 130 8.700(10.16) 120 Offretite (K2,Ca,Mg)2.5Al5Si13O36·15(H2O)
23.000(3.84) 200 11.220(7.87) 180 5.688(15.57) 120 Wallkilldellite Ca4Mn++6As+++++4O16(OH)8·18(H2O)
23.000(3.84) 200 5.988(14.78) 62 5.132(17.26) 50 Smythite (Fe,Ni)9S11 or (Fe,Ni)13S16
23.000(3.84) 200 5.220(16.97) 120 5.780(15.32) 120 Erlianite (Fe++,Mg)4(Fe+++,V+++)2[Si6O15](O,OH)8
23.020(3.84) 200 8.692(10.17) 176 5.776(15.33) 106 Calciopetersite CaCu6[(PO4)2(PO3OH)(OH)6]·3(H2O)
23.040(3.83) 200 5.800(15.26) 84 13.980(6.32) 46 Sasaite (Al,Fe+++)14(PO4)11(SO4)(OH)7·84(H2O)
23.128(3.82) 200 13.864(6.37) 180 6.104(14.50) 150 Haineaultite (Na,Ca)5Ca(Ti,Nb)5(Si,S)12O34(OH,F)8·5(H2O)
23.160(3.81) 200 5.980(14.80) 200 3.304(26.96) 160 Ershovite Na4K3(Fe++,Mn++,Ti)2Si8O20(OH)4·5(H2O)
23.200(3.81) 200 13.820(6.39) 180 6.080(14.56) 160 Chivruaiite Ca4(Ti,Nb)5[(Si6O17)2[(OH,O)5]·13-14H2O
23.200(3.81) 200 5.720(15.48) 160 11.400(7.75) 120 Murmanite (Na,[ ])2{(Na,Ti)4[Ti2(O,H2O)4Si4O14](OH,F)2}·2H2O
23.200(3.81) 200 11.340(7.79) 160 6.550(13.51) 140 Wallkilldellite-(Fe) (Ca,Cu)4Fe6[(As,Si)O4]4(OH)8·18(H2O)
23.200(3.81) 200 4.866(18.22) 120 8.720(10.14) 100 Petersite-(Y) (Y,Ce,Nd,Ca)Cu6(PO4)3(OH)6·3(H2O)
23.200(3.81) 200 13.240(6.67) 60 10.040(8.80) 60 Kribergite Al5(PO4)3(SO4)(OH)4·4(H2O)
23.260(3.80) 200 5.840(15.16) 100 6.470(13.68) 90 Goudeyite (Al,Y)Cu6(AsO4)3(OH)6·3(H2O)
23.260(3.80) 200 11.600(7.61) 54 11.760(7.51) 40 Avdoninite K2Cu5Cl8(OH)4·H2O
23.280(3.79) 200 5.869(15.08) 84 8.862(9.97) 82 Zalesiite (Ca,Y)Cu6[(AsO4)2(AsO3OH)(OH)6]·3(H2O)
23.308(3.79) 200 9.724(9.09) 124 13.162(6.71) 124 Matioliite NaMgAl5(PO4)4(OH)6·2H2O
23.320(3.79) 200 6.000(14.75) 82 5.314(16.67) 44 Chlorartinite Mg2(CO3)Cl(OH)·3(H2O)
23.400(3.77) 200 4.900(18.09) 80 7.120(12.42) 54 Agardite-(La) (La,Ca)Cu6(AsO4)3(OH)6·3(H2O)
23.420(3.77) 200 6.162(14.36) 180 6.230(14.20) 140 Burangaite (Na,Ca)2(Fe++,Mg)2Al10(PO4)8(OH,O)12·4(H2O)
23.556(3.75) 200 8.780(10.07) 140 6.024(14.69) 140 IMA2009-025 Na3K3Fe+++2Si8O20(OH)4·4H2O
23.580(3.74) 200 15.800(5.59) 160 20.320(4.34) 160 Bouazzerite Bi6(Mg,Co)11Fe14[AsO4]18O12(OH)4(H2O)86

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