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1. Tetragonal YPO4, space group: I41/amd (141)
PDF#11-0254: QM=Indexed; d=Debye-Scherrer; I=Other/Unknown
Xenotime-(Y)
2. Hexagonal YPO4, space group: P3121
PDF#42-0082: QM=Indexed; d=Diffractometer; I=Diffractometer
Yttrium Phosphate Hydrate
Y P O4 !0.8 H2 O

Ref= Hikichi, Y., Sasaki, T., Murayama, K., Nomura, T., Miyamoto, M.
J. Am. Ceram. Soc., 72 1073 (1989)
Hexagonal - (Unknown)        Z=        mp=

[ Last edited by xuzhenhe on 2009-3-23 at 15:36 ]
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paopaomeng(½ð±Ò+1,VIP+0):лл½»Á÷ 3-23 18:32
*data for   ICSD #79754
Coll Code   79754
Rec  Date   1996/10/14
Mod  Date   1999/01/19
Chem Name   Yttrium Phosphate(V)
Structured  Y (P O4)
Sum         O4 P1 Y1
ANX         ABX4
Min Name    Xenotime (Y)
D(calc)     4.26
Title       Crystal chemistry of the monazite and xenotime structures
Author(s)   Ni, Y.-X.;Hughes, J.M.;Mariano, A.N.
Reference   American Mineralogist
            (1995), 80, 21-26
Unit Cell   6.8947(6) 6.8947(6) 6.0276(6) 90. 90. 90.
Vol         286.53
Z           4
Space Group I 41/a m d Z
SG Number   141
Cryst Sys   tetragonal
Pearson     tI24
Wyckoff     h b a
R Value     .016
Red Cell    I  5.731 5.731 5.731 106.050 106.050 116.553 143.267
Trans Red   -0.500 0.500 0.500 / 0.500 -0.500 0.500 / 0.500 0.500 -0.500
Comments    Lattice parameters given were fit to lattice symmetry
            Zircon structure type
            Compound with mineral name: Xenotime (Y)
            The structure has been assigned a PDF number (calculated
            powder diffraction data): 01-083-0658
            The structure has been assigned a PDF number (experimental
            powder diffraction data): 11-254
            Structure type : ZrSiO4
            X-ray diffraction from single crystal
            Unusual difference between calculated and measured density
Atom  #   OX   SITE      x           y           z           SOF      H        ITF(B)   
Y    1  +3    4 a   0           0.75        0.125          1.         0        0.455(7)
P    1  +5    4 b   0           0.25        0.375          1.         0         0.62(2)
O    1  -2    16 h  0           0.0753(6)   0.2158(6)      1.         0         0.94(6)
*end for    ICSD #79754
2Â¥2009-03-23 11:18:16
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xuzhenhe(½ð±Ò+3,VIP+0):Ö»ÓÐÒ»¸ö£¬»¹²îÒ»¸ö°¡£¬ÄÇҲллÁË 3-23 15:34
ÒýÓûØÌû:
Originally posted by xuzhenhe at 2009-3-23 11:13:
Çë¸ßÈ˰ïæÕÒ£¬ÎÒÐèÒªÕâÁ½¸öµÄCIFÎļþ£¬Ð»Ð»ÁË£¡


1. Tetragonal YPO4, space group: I41/amd (141)
PDF#11-0254: QM=Indexed; d=Debye-Scherrer; I=Other/Unknown
Xenotime-(Y)
2. Hexagonal YPO4, space ...

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