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 16 Records, Sorted by D1 using 1.54056 - CuKa1 for 2θ WHERE (d1 > 3.22714 AND d1 < 3.35886)
D1
Å (2θ)
I1
%)
D2
Å (2θ)
I2
(%)
D3
Å (2θ)
I3
(%)
Mineral Formula
3.236(27.54) 200 3.746(23.73) 200 5.290(16.75) 200 Zavaritskite BiOF
3.240(27.51) 200 4.280(20.74) 200 5.900(15.00) 200 Bismutite Bi2(CO3)O2
3.240(27.51) 200 5.420(16.34) 200 6.060(14.61) 160 Hibschite Ca3Al2(SiO4)3-x(OH)4x(x=0.2-1.5)
3.250(27.42) 200 4.280(20.74) 200 4.204(21.12) 120 Pseudosinhalite Mg2Al3B2O9(OH)
3.258(27.35) 200 5.318(16.66) 200 10.600(8.33) 200 Murdochite PbCu6O8-x(Cl,Br)2x
3.266(27.28) 200 5.418(16.35) 170 4.846(18.29) 130 Pyrite FeS2
3.270(27.25) 200 6.622(13.36) 200 14.800(5.97) 200 Akaganeite Fe+++(O,OH,Cl)
3.270(27.25) 200 8.000(11.05) 196 4.660(19.03) 138 Nsutite (Mn++++1-x)(Mn++x)(O2-2x)(OH2x) where x = 0.06-0.07
3.280(27.16) 200 2.780(32.17) 190 5.680(15.59) 170 Simpsonite Al4(Ta,Nb)3O13(OH)
3.300(27.00)
-
4.300(20.64)
-
4.900(18.09)
-
Akhtenskite Mn++++O2
3.334(26.72) 200 5.078(17.45) 180 5.580(15.87) 160 Kimzeyite Ca3(Zr,Ti)2(Si,Al,Fe+++)3O12
3.340(26.67) 200 5.340(16.59) 194 7.260(12.18) 192 Eskolaite Cr2O3
3.340(26.67) 200 2.840(31.47) 120 4.320(20.54) 120 Kleberite FeTi6O13ยท4(H2O) (?)
3.344(26.63) 200 3.800(23.39) 200 4.880(18.16) 200 Malyshevite PdCuBiS3
3.348(26.60) 200 4.720(18.78) 180 5.700(15.53) 180 Polydymite NiNi2S4
3.354(26.55) 200 5.128(17.28) 186 6.280(14.09) 182 IMA2009-029 Ca3Zr2(Fe+++2Si)O12

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