|
| Home | Crystal | jmol | jPOWD | Chem | X Ray | Dana | Strunz | Properties | A to Z | Images | Share | News | Help | About |
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.
|
Selected X-Ray λ |
Change X-Ray λ |
D1 Å |
D2 Å |
D3 Å |
Tolerance % |
Elements |
|---|
[ 1 ]
| D1 Å (2θ) |
I1 %) |
D2 Å (2θ) |
I2 (%) |
D3 Å (2θ) |
I3 (%) |
Mineral | Formula |
| 5.630(15.73) | 100 | 4.315(20.57) | 100 | 3.136(28.44) | 80 | Carboborite | Ca2Mg(CO3)2B2(OH)8•4(H2O) |
| 5.650(15.67) | 100 | 7.296(12.12) | 75 | 5.926(14.94) | 70 | Ceruleite | Cu2Al7(AsO4)4(OH)13•12(H2O) |
| 5.660(15.64) | 100 | 3.760(23.64) | 100 | 14.300(6.18) | 100 | Faujasite-Na | (Na2,Ca,Mg)3.5[Al7Si17O48]•32(H2O) |
| 5.660(15.64) | 100 | 3.760(23.64) | 100 | 14.300(6.18) | 100 | Faujasite-Ca | (Ca,Na2,Mg)3.5[Al7Si17O48]•32(H2O) |
| 5.660(15.64) | 100 | 3.760(23.64) | 100 | 14.300(6.18) | 100 | Faujasite-Mg | (Mg,Na2,Ca)3.5[Al7Si17O48]•32(H2O) |
| 5.660(15.64) | 100 | 5.020(17.65) | 45 | 2.590(34.60) | 45 | Magnesiocarpholite | MgAl2Si2O6(OH)4 |
| 5.660(15.64) | 100 | 3.260(27.33) | 100 | 5.010(17.69) | 90 | Inderite | MgB3O3(OH)5•5(H2O) |
| 5.660(15.64) | 100 | 2.960(30.17) | 95 | 3.500(25.43) | 65 | Orpheite | PbAl3(PO4,SO4)2(OH)6 (?) |
| 5.660(15.64) | 100 | 2.590(34.60) | 45 | 5.020(17.65) | 45 | Magnesiocarpholite | MgAl2Si2O6(OH)4 |
| 5.660(15.64) | 100 | 2.400(37.44) | 80 | 2.570(34.88) | 70 | Botallackite | Cu2Cl(OH)3 |
| 5.669(15.62) | 100 | 2.827(31.62) | 94 | 3.567(24.94) | 90 | Kanonaite | (Mn+++,Al)AlSiO5 |
| 5.670(15.62) | 100 | 7.930(11.15) | 100 | 13.000(6.79) | 100 | Andersonite | Na2Ca(UO2)(CO3)3•6(H2O) |
| 5.670(15.62) | 100 | 13.000(6.79) | 100 | 7.930(11.15) | 100 | Andersonite | Na2Ca(UO2)(CO3)3•6(H2O) |
| 5.680(15.59) | 100 | 2.760(32.41) | 60 | 1.575(58.56) | 60 | Yushkinite | V1-xS•n(Mg,Al)(OH)2 |
| 5.680(15.59) | 100 | 1.575(58.56) | 60 | 2.760(32.41) | 60 | Yushkinite | V1-xS•n(Mg,Al)(OH)2 |
| 5.690(15.56) | 100 | 3.426(25.99) | 80 | 2.992(29.84) | 75 | Ahlfeldite | (Ni,Co)SeO3•2(H2O) |
| 5.700(15.53) | 100 | 6.350(13.93) | 95 | 3.280(27.16) | 30 | Kladnoite | C6H4(CO)2NH |
| 5.700(15.53) | 100 | 3.385(26.31) | 16 | 1.690(54.23) | 14 | Dawsonite | NaAl(CO3)(OH)2 |
| 5.700(15.53) | 100 | 3.540(25.14) | 91 | 2.860(31.25) | 78 | Acetamide | CO(CH3)(NH2) |
| 5.705(15.52) | 100 | 2.613(34.29) | 100 | 3.048(29.28) | 90 | Potassiccarpholite | (K,Na,[ ])(Li,Mn++)2Al)4Si4O12(OH)4(F,OH)4 |
| 5.710(15.51) | 100 | 11.400(7.75) | 100 | 3.370(26.43) | 60 | Valleriite | 4(Fe,Cu)S•3(Mg,Al)(OH)2 |
| 5.720(15.48) | 100 | 7.280(12.15) | 90 | 3.244(27.47) | 60 | Faheyite | (Mn,Mg)Fe+++2Be2(PO4)4•6(H2O) |
| 5.730(15.45) | 100 | 2.464(36.43) | 81 | 2.730(32.78) | 39 | Kapellasite | Cu3Zn(OH)6Cl2 |
| 5.730(15.45) | 100 | 8.110(10.90) | 80 | 2.690(33.28) | 80 | Orschallite | Ca3(SO3)2SO4•12(H2O) |
| 5.730(15.45) | 100 | 5.080(17.44) | 70 | 2.620(34.20) | 50 | Carpholite | MnAl2Si2O6(OH)4 |
| 5.730(15.45) | 100 | 2.690(33.28) | 80 | 8.110(10.90) | 80 | Orschallite | Ca3(SO3)2SO4•12(H2O) |
| 5.740(15.42) | 100 | 1.765(51.75) | 85 | 2.880(31.03) | 75 | Ralstonite | NaxMgxAl2-x(F,OH)6•(H2O) |
| 5.740(15.42) | 100 | 7.100(12.46) | 100 | 3.239(27.52) | 70 | Poughite | Fe+++2(TeO3)2(SO4)•3(H2O) |
| 5.745(15.41) | 100 | 2.872(31.11) | 17 | 1.915(47.44) | 9 | Haydeeite | Cu3Mg(OH)6Cl2 |
| 5.750(15.40) | 100 | 2.700(33.15) | 100 | 2.445(36.73) | 90 | Claringbullite | Cu++4(OH)7Cl |
| 5.750(15.40) | 100 | 2.641(33.91) | 26 | 3.080(28.97) | 22 | Vanadiocarpholite | Mn++V+++Al(Si2O6)(OH)4 |
| 5.750(15.40) | 100 | 6.300(14.05) | 50 | 4.360(20.35) | 40 | Widgiemoolthalite | (Ni,Mg)5(CO3)4(OH)2•4-5(H2O) |
| 5.760(15.37) | 100 | 3.080(28.97) | 80 | 8.090(10.93) | 80 | Grimselite | K3Na(UO2)(CO3)3•(H2O) |
| 5.760(15.37) | 100 | 2.520(35.60) | 100 | 3.700(24.03) | 80 | Painite | CaZrB[Al9O18] |
| 5.760(15.37) | 100 | 2.915(30.64) | 35 | 3.445(25.84) | 25 | Tolbachite | CuCl2 |
| 5.760(15.37) | 100 | 8.090(10.93) | 80 | 3.080(28.97) | 80 | Grimselite | K3Na(UO2)(CO3)3•(H2O) |
| 5.767(15.35) | 100 | 1.881(48.35) | 48 | 3.151(28.30) | 35 | Catamarcaite | Cu6GeWS8 |
| 5.770(15.34) | 100 | 6.680(13.24) | 85 | 3.320(26.83) | 50 | Hydroboracite | CaMgB6O8(OH)6•3(H2O) |
| 5.790(15.29) | 100 | 2.899(30.82) | 82 | 9.200(9.61) | 39 | Hydromagnesite | Mg5(CO3)4(OH)2•4(H2O) |
| 5.795(15.28) | 100 | 3.498(25.44) | 90 | 3.881(22.90) | 48 | Bobjonesite | VO(SO4)(H2O)3 |
| 5.800(15.26) | 100 | 7.620(11.60) | 90 | 5.240(16.91) | 90 | Indigirite | Mg2Al2(CO3)4(OH)2•15(H2O) |
| 5.800(15.26) | 100 | 5.240(16.91) | 90 | 7.620(11.60) | 90 | Indigirite | Mg2Al2(CO3)4(OH)2•15(H2O) |
| 5.811(15.23) | 100 | 5.032(17.61) | 73 | 2.516(35.66) | 69 | Panichiite | (NH4)2SnCl6 |
| 5.811(15.23) | 100 | 9.318(9.48) | 89 | 5.679(15.59) | 43 | Hellyerite | NiCO3•6(H2O) |
| 5.824(15.20) | 100 | 5.866(15.09) | 80 | 3.163(28.19) | 15 | Hydromolysite | FeCl3•6(H2O) |
| 5.830(15.18) | 100 | 3.880(22.90) | 100 | 11.600(7.61) | 100 | Kolovratite | Hydrous vanadate of Ni and Zn |
| 5.840(15.16) | 100 | 4.140(21.45) | 70 | 3.990(22.26) | 60 | Anthonyite | Cu(OH,Cl)2•3(H2O) |
| 5.840(15.16) | 100 | 2.720(32.90) | 72 | 4.980(17.80) | 61 | Jokokuite | MnSO4•5(H2O) |
| 5.843(15.15) | 100 | 9.704(9.11) | 100 | 3.139(28.41) | 90 | Dickthomssenite | Mg(V+++++2O6)•7(H2O) |
[ 1 ]