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 31 Records, Sorted by D1 using 1.54056 - CuKa1 for 2θ WHERE (d1 > 3.4496 AND d1 < 3.5904)
D1
Å (2θ)
I1
%)
D2
Å (2θ)
I2
(%)
D3
Å (2θ)
I3
(%)
Mineral Formula
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 7.400(11.95) 140 10.040(8.80) 140 Clinohumite (Mg,Fe++)9(SiO4)4(F,OH)2
3.480(25.58) 200 5.120(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
3.500(25.43) 200 3.800(23.39) 140 5.960(14.85) 120 Malanite Cu(Pt,Ir)2S4
3.500(25.43) 200 5.200(17.04) 160 6.660(13.28) 160 Varlamoffite (Sn,Fe)(O,OH)2
3.500(25.43) 200 5.700(15.53) 200 4.860(18.24) 140 Gehlenite Ca2Al(AlSi)O7
3.510(25.35) 200 3.704(24.01) 180 3.098(28.79) 160 Polkanovite Rh12As7
3.510(25.35) 200 4.960(17.87) 200 6.000(14.75) 160 Trustedtite Ni3Se4
3.516(25.31) 200 6.000(14.75) 200 2.018(44.88) 180 Cuprorhodsite CuRh2S4
3.520(25.28) 200 6.000(14.75) 200 4.978(17.80) 180 Cuproiridsite CuIr2S4
3.526(25.24) 200 6.016(14.71) 200 3.836(23.17) 160 Cobaltpentlandite Co9S8
3.526(25.24) 200 5.960(14.85) 200 4.918(18.02) 180 Konderite PbCu3(Rh,Pt,Ir)8S16
3.530(25.21) 200 5.700(15.53) 160 6.480(13.65) 120 Roshchinite Ag19Pb10Sb51S96 or Pb(Ag,Cu)2(Sb,As)5S10
3.530(25.21) 200 6.000(14.75) 160 11.600(7.61) 160 Xingzhongite (Pb,Cu,Fe)(Ir,Pt,Rh)2S4
3.532(25.19) 200 5.334(16.61) 200 6.198(14.28) 200 Yftisite-(Y) (Y,Dy,Er)4(Ti,Sn)O(SiO4)2(F,OH)6
3.536(25.16) 200 6.020(14.70) 200 5.000(17.72) 160 Florensovite Cu(Cr1.5Sb0.5)S4
3.538(25.15) 200 5.002(17.72) 180 5.772(15.34) 140 Tyrrellite (Cu,Co,Ni)3Se4
3.540(25.14) 200 6.040(14.65) 160 5.020(17.65) 120 Daubreelite Fe++Cr2S4
3.548(25.08) 200 6.040(14.65) 180 4.480(19.80) 180 Miassite Rh17S15
3.550(25.06) 200 6.060(14.61) 160 3.862(23.01) 100 Pentlandite (Fe,Ni)9S8
3.552(25.05) 200 17.400(5.07) 200 6.140(14.41) 180 Vozhminite (Ni,Co)4(As,Sb)S2
3.558(25.01) 200 5.780(15.32) 180 5.900(15.00) 180 Weberite Na2MgAlF7
3.564(24.96) 200 4.664(19.01) 160 6.204(14.26) 160 Welinite-III Mn++6(W++++++,Mg)2Si2(O,OH)14
3.564(24.96) 200 4.664(19.01) 160 6.204(14.26) 160 Welinite-VIII (Mn++,Mg)3(W++++++,Mn+++)1-x(SiO4)(O,OH)3 (x=1/3)
3.565(24.96) 200 6.786(13.04) 178 5.026(17.63) 158 Manganhumite (Mn,Mg)7(SiO4)3(OH)2
3.582(24.84) 160 4.640(19.11) 160 3.488(25.52) 160 Felbertalite Cu2Pb6Bi8S19

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