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 24 Records, Sorted by D1 using 1.54056 - CuKa1 for 2θ WHERE (d1 > 3.36238 AND d1 < 3.49962)
D1
Å (2θ)
I1
%)
D2
Å (2θ)
I2
(%)
D3
Å (2θ)
I3
(%)
Mineral Formula
3.366(26.46) 200 5.160(17.17) 200 5.640(15.70) 180 Yafsoanite Ca3Te2Zn3O12
3.372(26.41) 200 4.962(17.86) 160 4.366(20.32) 140 Pseudorutile Fe+++2Ti3O9
3.376(26.38) 200 3.022(29.53) 120 5.346(16.57) 120 Schallerite Mn++16[As+++O2OH][Si12O30](OH)14
3.380(26.35) 200 6.420(13.78) 160 4.960(17.87) 120 Belyankinite Ca1-2(Ti,Zr,Nb)5O12·9(H2O) (?)
3.380(26.35) 200 3.400(26.19) 200 2.870(31.14) 180 Davidite-(Ce) (Ce,La)(Y,U)(Ti,Fe+++)20O38
3.384(26.31) 80 4.960(17.87) 60 6.420(13.78) 40 Manganbelyankinite (Mn,Ca)(Ti,Nb)5O12·9(H2O)
3.388(26.28) 200 6.516(13.58) 160 5.970(14.83) 140 Yttrobetafite-(Y) (Y,U,Ce)2(Ti,Nb,Ta)2O6(OH)
3.390(26.27) 200 6.500(13.61) 160 5.620(15.76) 140 Laurite RuS2
3.407(26.13) 200 5.158(17.18) 180 5.414(16.36) 176 Tistarite Ti2O3
3.414(26.08) 200 6.560(13.49) 200 5.040(17.58) 180 Struverite (Ti,Ta,Fe+++)O2
3.420(26.03) 200 7.458(11.86) 180 5.418(16.35) 140 Natanite Fe++Sn++++(OH)6
3.426(25.99) 200 4.488(19.77) 176 5.496(16.11) 130 IMA2008-060 Mg2(BO3)(OH)
3.426(25.99) 200 4.020(22.09) 200 5.380(16.46) 180 Maucherite Ni11As8
3.440(25.88) 200 4.912(18.04) 200 8.460(10.45) 200 Hisingerite Fe+++2Si2O5(OH)4·2(H2O)
3.440(25.88) 200 6.520(13.57) 180 5.100(17.37) 160 Ordonezite ZnSb2O6
3.440(25.88) 200 4.180(21.24) 180 5.840(15.16) 100 Gagarinite-(Y) NaCaY(F,Cl)6
3.480(25.58) 200 7.400(11.95) 140 10.040(8.80) 140 Clinohumite (Mg,Fe++)9(SiO4)4(F,OH)2
3.480(25.58) 200 5.740(15.42) 200 6.620(13.36) 200 Hollingworthite (Rh,Pt,Pd)AsS
3.480(25.58) 200 5.120(17.31) 160 6.660(13.28) 160 Tapiolite (Fe,Mn)(Ta,Nb)2O6
3.480(25.58) 200 5.120(17.31) 160 6.660(13.28) 160 Tapiolite-(Fe) (Fe++,Mn++)(Ta,Nb)2O6
3.480(25.58) 200 5.740(15.42) 200 6.640(13.32) 200 Irarsite (Ir,Ru,Rh,Pt)AsS
3.486(25.53) 200 5.738(15.43) 200 5.302(16.71) 140 Sonolite Mn9(SiO4)4(OH,F)2
3.488(25.52) 180 5.220(16.97) 160 6.600(13.40) 140 Bezsmertnovite Au4Cu(Te,Pb)
3.492(25.49) 200 5.792(15.28) 180 6.690(13.22) 160 Platarsite (Pt,Rh,Ru)AsS

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