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X-Ray Diffraction Table |
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X-Ray Diffraction Table |
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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| D1 Å (2θ) |
I1 %) |
D2 Å (2θ) |
I2 (%) |
D3 Å (2θ) |
I3 (%) |
Mineral | Formula |
| 3.592(24.77) | 200 | 5.104(17.36) | 160 | 5.746(15.41) | 160 | Ribbeite | (Mn++,Mg)5(SiO4)2(OH)2 |
| 3.594(24.75) | 200 | 2.650(33.80) | 160 | 4.444(19.96) | 160 | Zoubekite | AgPb4Sb4S10 |
| 3.596(24.74) | 200 | 3.992(22.25) | 160 | 6.886(12.85) | 40 | Ertixiite | Na2Si4O9 |
| 3.598(24.72) | 200 | 5.720(15.48) | 160 | 5.196(17.05) | 120 | Alleghanyite | Mn5(SiO4)2(OH)2 |
| 3.600(24.71) | 200 | 4.040(21.98) | 200 | 5.400(16.40) | 200 | Wilkmanite | Ni3Se4 |
| 3.600(24.71) | 200 | 3.550(25.06) | 180 | 3.490(25.50) | 160 | Vincentite | (Pd,Pt)3(As,Sb,Te) |
| 3.602(24.70) | 200 | 2.296(39.20) | 140 | 5.960(14.85) | 120 | Sperrylite | PtAs2 |
| 3.602(24.70) | 200 | 5.890(15.03) | 200 | 3.074(29.02) | 180 | Calzirtite | CaZr3TiO9 |
| 3.608(24.65) | 200 | 5.784(15.31) | 200 | 7.414(11.93) | 120 | Nordenskioldine | CaSnB2O6 |
| 3.612(24.63) | 200 | 5.754(15.39) | 180 | 5.368(16.50) | 160 | Leucophoenicite | Mn7(SiO4)3(OH)2 |
| 3.612(24.63) | 200 | 5.114(17.33) | 200 | 5.738(15.43) | 156 | Jerrygibbsite | (Mn,Zn)9(SiO4)4(OH)2 |
| 3.620(24.57) | 200 | 6.540(13.53) | 200 | 6.320(14.00) | 180 | Nasonite | Pb6Ca4Si6O21Cl2 |
| 3.622(24.56) | 200 | 5.288(16.75) | 200 | 7.038(12.57) | 200 | Chernovite-(Y) | YAsO4 |
| 3.626(24.53) | 200 | 2.292(39.28) | 180 | 5.980(14.80) | 180 | Tolovkite | IrSbS |
| 3.636(24.46) | 200 | 6.240(14.18) | 160 | 8.340(10.60) | 160 | Tungusite | [Ca14(OH)8](Si8020)(Si8020)2[Fe++9(OH)14] |
| 3.638(24.45) | 200 | 4.480(19.80) | 200 | 6.340(13.96) | 200 | Argentite | Ag2S |
| 3.640(24.43) | 200 | 6.890(12.84) | 178 | 3.976(22.34) | 164 | Rambergite | MnS |
| 3.656(24.33) | 200 | 5.970(14.83) | 140 | 4.744(18.69) | 120 | Djerfisherite | K6Na(Fe,Cu,Ni)25S26Cl |
| 3.660(24.30) | 200 | 5.620(15.76) | 200 | 6.180(14.32) | 200 | Plombierite | Ca5H2Si6O18·6H2O |
| 3.660(24.30) | 200 | 5.780(15.32) | 180 | 3.320(26.83) | 160 | Heazlewoodite | Ni3S2 |
| 3.664(24.27) | 200 | 5.860(15.11) | 180 | 6.160(14.37) | 160 | Betekhtinite | Cu10(Fe,Pb)S6 |
| 3.668(24.24) | 200 | 4.386(20.23) | 200 | 6.522(13.57) | 180 | Chukhrovite-(Y) | Ca3(Y,Ce)Al2(SO4)F13·10(H2O) |
| 3.670(24.23) | 200 | 4.756(18.64) | 180 | 5.992(14.77) | 180 | Owensite | (Ba,Pb)6(Cu,Fe,Ni)25S27 |
| 3.676(24.19) | 200 | 2.344(38.37) | 190 | 1.858(48.99) | 180 | Kalungaite | PdAsSe |
| 3.678(24.18) | 200 | 15.340(5.76) | 200 | 4.680(18.95) | 180 | Chlormagaluminite | (Mg,Fe++)4Al2(OH)12(Cl2,CO3)·2(H2O) |
| 3.684(24.14) | 200 | 5.274(16.80) | 180 | 5.138(17.24) | 160 | Zirsinalite | Na6(Ca,Mn,Fe++)Zr[Si6O18] |
| 3.688(24.11) | 200 | 6.120(14.46) | 160 | 3.778(23.53) | 120 | Luobusaite | Fe0.83Si2 |
| 3.698(24.05) | 200 | 6.180(14.32) | 160 | 9.200(9.61) | 160 | Caledonite | Pb5Cu2(CO3)(SO4)3(OH)6 |
| 3.700(24.03) | 200 | 5.260(16.84) | 160 | 5.380(16.46) | 160 | Glaucochroite | CaMnSiO4 |
| 3.708(23.98) | 200 | 5.654(15.66) | 200 | 6.028(14.68) | 200 | Saryarkite-(Y) | Ca(Y,Th)Al5(SiO4)2(PO4,SO4)2(OH)7·6(H2O) |
| 3.712(23.95) | 200 | 5.600(15.81) | 200 | 7.000(12.64) | 200 | Plattnerite | PbO2 |
| 3.716(23.93) | 200 | 6.340(13.96) | 200 | 4.036(22.01) | 80 | Argentopentlandite | Ag(Fe,Ni)8S8 |
| 3.720(23.90) | 200 | 5.500(16.10) | 140 | 5.020(17.65) | 120 | Changchengite | IrBiS |
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