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 53 Records, Sorted by D1 using 1.54056 - CuKa1 for 2θ WHERE (d1 > 4.6648 AND d1 < 4.8552)
D1
Å (2θ)
I1
%)
D2
Å (2θ)
I2
(%)
D3
Å (2θ)
I3
(%)
Mineral Formula
4.670(18.99) 200 9.220(9.58) 190 3.510(25.35) 100 Theophrastite Ni(OH)2
4.680(18.95) 200 4.380(20.26) 200 4.120(21.55) 200 Siderazot Fe5N2
4.680(18.95) 200 8.020(11.02) 200 7.280(12.15) 180 Beryllite Be3SiO4(OH)2·(H2O)
4.680(18.95) 200 2.548(35.19) 160 2.804(31.89) 110 Potarite PdHg
4.680(18.95) 200 2.700(33.15) 70 3.300(27.00) 34 Tantalum Ta
4.680(18.95) 200 8.320(10.62) 200 6.380(13.87) 160 Widenmannite Pb2(UO2)(CO3)3
4.684(18.93) 200 3.165(28.17) 60 2.941(30.37) 40 Novodneprite AuPb3
4.690(18.91) 200 5.480(16.16) 180 5.588(15.85) 180 Jalpaite Ag3CuS2
4.708(18.83) 200 5.348(16.56) 180 14.060(6.28) 170 Tuliokite BaNa6Th(CO3)6·6(H2O)
4.710(18.83) 200 4.078(21.78) 104 2.460(36.49) 72 Gold Au
4.718(18.79) 200 4.088(21.72) 80 2.462(36.46) 52 Silver Ag
4.720(18.78) 200 2.730(32.78) 140 2.472(36.31) 120 Moschellandsbergite Ag2Hg3
4.720(18.78) 200 2.448(36.68) 180 4.080(21.76) 140 Aluminum Al
4.720(18.78) 200 2.460(36.49) 160 4.090(21.71) 120 Bogdanovite (Au,Te,Pb)3(Cu,Fe)
4.720(18.78) 200 5.340(16.59) 160 5.040(17.58) 100 Moissanite SiC
4.730(18.74) 200 9.540(9.26) 180 3.588(24.79) 110 Brucite Mg(OH)2
4.740(18.70) 200 2.464(36.43) 160 4.100(21.66) 140 Bilibinskite Au3Cu2PbTe2
4.740(18.70) 200 1.900(47.83) 160 4.200(21.14) 160 Eugenite Ag9Hg2
4.740(18.70) 200 4.504(19.69) 120 5.096(17.39) 80 Allargentum Ag1-xSbx(x=0.009-0.16)
4.740(18.70) 200 5.860(15.11) 120 4.280(20.74) 100 Hibbingite (Fe,Mg)2(OH)3Cl
4.744(18.69) 200 9.660(9.15) 180 5.314(16.67) 160 Cumengite Cu20Pb21Cl42(OH)40·6H2O
4.746(18.68) 200 12.920(6.84) 152 5.690(15.56) 110 Drysdallite Mo(Se,S)2
4.758(18.63) 200 5.144(17.22) 160 5.194(17.06) 110 Safflorite (Co,Fe)As2
4.760(18.63) 200 7.860(11.25) 180 7.600(11.63) 160 Behoite Be(OH)2
4.760(18.63) 200 5.480(16.16) 160 5.200(17.04) 120 Poyarkovite Hg3ClO
4.768(18.59) 200 5.616(15.77) 160 6.352(13.93) 160 Karibibite Fe+++2As+++4(O,OH)9
4.772(18.58) 200 11.400(7.75) 160 10.720(8.24) 140 Kempite Mn2Cl(OH)3
4.778(18.55) 200 4.200(21.14) 160 7.276(12.15) 160 Vasilite (Pd,Cu)16(S,Te)7
4.780(18.55) 200 4.300(20.64) 120 6.220(14.23) 120 Vernadite (Mn++++,Fe+++,Ca,Na)(O,OH)2·n(H2O)
4.780(18.55) 200 5.240(16.91) 200 3.530(25.21) 180 Trogtalite CoSe2
4.780(18.55) 200 5.526(16.03) 200 7.478(11.82) 160 Buckhornite AuPb2BiTe2S3
4.782(18.54) 200 5.620(15.76) 60 2.392(37.57) 52 Hunchunite (Au,Ag)2Pb
4.786(18.52) 200 6.156(14.38) 200 7.600(11.63) 180 Rohaite TlCu5SbS2
4.798(18.48) 200 3.308(26.93) 160 6.220(14.23) 160 Cryptomelane K(Mn++++,Mn++)8O16
4.808(18.44) 200 8.178(10.81) 200 5.264(16.83) 66 Tsumgallite GaO(OH)
4.810(18.43) 200 3.402(26.17) 90 5.556(15.94) 68 Lime CaO
4.812(18.42) 200 14.034(6.29) 196 6.272(14.11) 184 Manjiroite (Na,K)(Mn++++,Mn++)8O16·n(H2O)
4.816(18.41) 200 2.838(31.50) 160 4.104(21.64) 140 Magnesiotaaffeite-6N3S (Mg,Fe++,Zn)2Al6BeO12
4.820(18.39) 200 8.940(9.89) 200 6.264(14.13) 60 Reichenbachite Cu++5(PO4)2(OH)4
4.820(18.39) 200 3.074(29.02) 120 4.600(19.28) 100 Maldonite Au2Bi
4.820(18.39) 200 4.380(20.26) 170 6.960(12.71) 120 Romanechite (Ba,H2O)2(Mn++++,Mn+++)5O10
4.820(18.39) 200 20.060(4.40) 190 5.180(17.10) 134 IMA2009-017 KMg2.5Si4O10F2
4.840(18.31) 200 2.850(31.36) 160 5.200(17.04) 160 Zincohogbomite-2N2S (Zn,Fe++)(2-2x)(Ti)xAl4O8
4.840(18.31) 200 5.420(16.34) 200 5.700(15.53) 160 Crednerite CuMnO2
4.840(18.31) 200 5.700(15.53) 180 3.100(28.77) 120 Ferronigerite-2N1S (Zn,Mg,Fe++)(Sn,Zn)2(Al,Fe+++)12O22(OH)2
4.840(18.31) 200 4.200(21.14) 100 6.100(14.51) 80 Telargpalite (Pd,Ag)3Te
4.844(18.30) 200 8.900(9.93) 164 5.146(17.22) 130 Hydroxylborite Mg3(BO3)(OH,F)3
4.844(18.30) 200 5.712(15.50) 160 2.852(31.34) 100 Ferrotaaffeite-6N3S (Fe++,Zn,Mg)2Al6BeO12
4.846(18.29) 200 5.692(15.56) 180 2.828(31.61) 100 Magnesionigerite-2N1S (Mg,Zn,Fe+++,Al)4(Sn,Fe+++)2Al10O22(OH)2
4.846(18.29) 200 4.492(19.75) 180 2.742(32.63) 160 Atheneite (Pd,Hg)3As
4.846(18.29) 200 5.692(15.56) 180 2.828(31.61) 100 Magnesionigerite-6N6S (Mg,Zn,Fe+++,Al)4(Sn,Fe+++)2Al10O22(OH)2
4.852(18.27) 200 5.782(15.31) 170 5.626(15.74) 160 Selenojalpaite Ag3CuSe2
4.854(18.26) 200 5.206(17.02) 176 2.860(31.25) 112 Ferrohogbomite-2N2S (Fe++,Zn,Mg,Al)6Al14(Ti,Fe)2O30(OH)2

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