Table of contents Ferroelectrics and related substances Subvolume A2:  	Oxides Oxides other than Perovskite-type and LiNbO3 family I Introduction [T. Mitsui, E. Nakamura]
IA General remarks ........................................ 1
IB Definition of ferroelectrics and antiferroelectrics ....................... 1
IC Remarks on some fundamental concepts and quantities .................... 3
ID Survey of history of ferroelectrics research .......................... 3
IE Symbols and units ....................................... 4
IF Survey of contained data .................................... 13
IG Outline of subvolumes A1 and B ................................ 36
II Data 3 YMnO3 family [T. Ikeda].................................... 39
4 SrTeO3 family [T. Hikita] ................................... 49
5 Stibiotantalite family [M. Adachi] ............................... 53
6 Tungsten-bronze-type oxides [T. Tsukamoto, T. Ikeda] .................... 65
7 Pyrochlore-type oxides [Y. Akishige]............................. 206 
8 Sr2Nb2O7 family [Y. Akishige]................................. 228 
9 Layer-structure oxides [Y. Akishige] ............................. 245 
10 BaAl2O4-type oxides [Y. Akishige] .............................. 281 
11 LaBGeO5 [Y. Iwata] ...................................... 285 
12 LiNaGe4O9-type oxides [Y. Iwata] .............................. 287 
13 Li2Ge7O15 family [Y. Iwata].................................. 292 
14 Pb5Ge3O11 family [Y. Iwata].................................. 302 
15 5PbO2P2O5 [Y. Iwata]..................................... 331 
16 Ca3(VO4)2 family [K. Nakatani]................................ 332 
17 Gd2(MoO4)3 (GMO) family [K. Nakatani]........................... 340 
18 Boracite-type family[T. Hikita]............................................ 370 
19 Rb3MoO3F3 family[M. Adachi]............................................ 428 
M Miscellaneouscrystals 
M1 TiO2 [E. Nakamura]..................................................... 432 
M2 WO3 [M. Adachi] ...................................................... 433 
M3 NaVO3 group [E. Nakamura].............................................. 437 
M4 Fe3O4 [Y. Akishige]..................................................... 445 
M5 RVO4 (R = Sc, Nd, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu)[T. Asahi].................. 448 
M6 RAsO4 (R = Pr, Nd, Eu, Gd, Tb, Dy, Er, Yb)[T. Asahi]........................... 451 
M7 Cr2BeO4 [K. Deguchi]................................................... 452 
M8 RMn2O5 (R = Y, Eu, Gd, Tb, Dy, Bi)[K. Deguchi].............................. 453 
M9 Pb3TeO6 [M. Adachi].................................................... 458 
M10 Li2B4O7 [M. Adachi].................................................... 459 
M11 Ag26I18W4O16 [M. Adachi]................................................ 461 
M12 Sr8[Al12O24](CrO4)2 [M. Adachi]............................................ 462 
M13 Pb5Mo3O9F10 group [K. Deguchi]............................................463 
M14 Pb5Cr3F19 group [K. Deguchi].............................................. 465 
III Alphabetical index of substances IIIA Pure compunds........................................................ 472 
IIIB Solid solutions ........................................................ 492 

IF Survey of contained data 
Each chapter of this volume corresponds to one family consisting of similar substances. This Subvolume A contains nineteen oxide families and thus nineteen chapters, as listed in table of contents. Each section in a chapter is devoted to describing properties of one substance (pure compound or solid solution). Table IF-1 shows how the data are presented in each section: The section is divided into 16 subsections and each subsection gives the data on special properties (e.g., dielectric properties). The information given in each section is surveyed by a table at the beginning of the section according to the order of subsections 1...16 of Table IF-1. 
A detailed two-dimensional survey of contained data is made in Table IF-2 which gives all the substances appearing in this Subvolume along the ordinate and properties along the abscissa.  
Table IF-1. Arrangement of data for each substance 
Subsection Information 
History and fundamental quantities. a History (discoverer, year of discovery). b Fundamental quantities (phases, state (F, A, P), crystal system, space group of each phase, 
transition temperatures, direction of spontaneous polarization, melting point, density, transparency and color, cleavage plane, deliquescence and efflorescence, phase diagram for solid solution). 
Material preparation and crystal growth. a Method, solubility in fluxes or solvents. b Crystal forms, a, b, c axes, X, Y, Z axes. 
 Crystal structure. a Unit cell parameters. b Crystal structure (Z, table of positional and temperature parameters, interatomic distances 
and bond angles, figure of crystal structures, structural change associated with phase transitions). 
Lattice distortions (thermal expansion, lattice deformation associated with spontaneous polarization). 
5 Dielectric properties. a Dielectric constants (. vs. T, Curie-Weiss law constants, . vs. p, . vs. two- or one
dimensional pressure, . vs. frequency, phase diagram in regard to p and Ebias). 
b Nonlinear dielectric properties (effect of Ebias on ., values of .and .). 
c Spontaneous polarization and coercive field (or critical field for antiferroelectrics). 
d Pyroelectric and electrocaloric effect. 

Thermal properties. a Heat capacity, transition heat, transition entropy. b Thermal conductivity. 
7 Electromechanical properties. 
a Piezoelectricity. 
b Electrostriction. 
c Nonlinear electromechanical properties. 
(continued) 
L a ndolt-B  rnstein New Series III/36A2 
Table IF-1 (continued) 
Subsection Information 
Elastic properties. a Elastic compliances and stiffnesses (including data on acoustic surface wave). b Nonlinear elastic properties. 
9 Optical properties. a Refractive indices, birefringence, reflection, absorption (infrared region, visible region, 
ultraviolet region). 
b Electrooptic effect. 
c Piezooptic effect (photoelastic effect). 
d Optical activity (rotatory power), Faraday effect. 
e Nonlinear optical properties. 

Properties studied by light scattering. 
a Raman scattering. 
b Brillouin scattering and Rayleigh scattering (Elastic constants are given in 8a). 
Electrical conduction (conductivity, breakdown strength, thermoelectric effect, photoconductivity and photoemission, superconductivity, band structure). 
Magnetic properties (magnetic susceptibility, spontaneous magnetization, magnetic structure, magnetoelectric effect). 
13 Properties studied by magnetic resonance and Mssbauer effect. a NMR. b ESR and ENDOR. c Mssbauer effect. 
14 Diffraction phenomena related with secondary structures and local structures. a Bragg reflections due to structural modulations. b Diffuse or inelastic scattering. c EXAFS. 
15 Domains. 
a Domain structure. 
b Effects of electric field and mechanical stress. 
Miscellanea (thin layer, surface layer, radiation damage, plasticity, dislocation, etchant, point defects, twin structure, stripe pattern, paraelectric resonance). 

Table IF-2. Two-dimensional survey of contained data 
This table indicates the pages where the required data for special properties and individual substances can be found. All the substances appearing in subvolume III/36A2 are given along the ordinate and properties along the abscissa. Detailed items of the property columns 1...16 on the abscissa can be found in Table IF-1. Abbreviations in this table: [F]: ferroelectric. [(F)]: possibility of ferroelectricity. [A]: antiferroelectric. [(A)]: possibility of antiferroelectricity. 
See pages 26...61 in subvolume III/36A1 for a detailed survey of substances appearing in subvolume III/36A1. See also the substance index at the end of this volume and the complete two-dimensional survey on CD-ROM. 
No.  Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
3  YMnO3 family  
3A  Pure compounds  
1  YMnO3 [F]  3A-1                    
2  ErMnO3 [F]  3A-2              
3  HoMnO3 [F]  3A-3              
4  TmMnO3 [F]  3A-4              
5  YbMnO3 [F]  3A-5                
6  LuMnO3 [F]  3A-6              
3B  Solid solutions  
1  YMnO3-YAlO3  3B-1      
2  YMnO3-YCrO3  3B-2    
3  YMnO3-YFeO3  3B-3      
4  YMnO3-BiMnO3  3B-4    
4  SrTeO3 family  
4A  Pure compounds  
1  SrTeO3 [F]  4A-1                      
4B  Solid solutions  
1  SrTeO3-CaTeO3  4B-1      
2  SrTeO3-BaTeO3  4B-2        
3  SrTeO3-PbTeO3  4B-3      
5  Stibiotantalite family  
5A  Pure compounds  
1  ScTaO4 [F]  5A-1          
2  SbNbO4 [F, (A)]  5A-2                  
3  SbTaO4 [F, (A)]  5A-3              
4  SbSbO4 [(A)]  5A-4          

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
5 BiNbO4 [(A), (F)]  5A-5              
6 BiTaO4  5A-6        
7 BiSbO4 [(A), (F)]  5A-7    
5B Solid solutions  
1 Sb(Ta,Nb)O4  5B-1                
2 Sb(Nb,Sb)O4  5B-2      
3 Bi(Ta,Nb)O4  5B-3    
4 Bi(MnM'm)O4 (M = Li, Mg, Fe, Ti, Ge, Zr, Sn; M' = Mo, W, Te)  5B-4      
5 (Bi,Sb)NbO4  5B-5      
6 Tungsten-bronze-type oxides  
6A Simple compounds (A5B10O30-type)  
1 PbNb2O6 [F]  6A-1                    
2 PbTa2O6 [F]  6A-2              
6B Complex compounds  
6B-a A6M10O30-type  
a1 Sr2NaNb5O15  6B-a1          
a2 Sr2KNb5O15 [F]  6B-a2                    
a3 Sr2RbNb5O15 [F]  6B-a3      
a4 Sr2AgNb5O15  6B-a4      
a5 Sr2TlNb5O15  6B-a5        
a6 Ba2LiNb5O15 (BLN) [F]  6B-a6              
a7 Ba2NaNb5O15 (BNN) [F]  6B-a7                                
a8 Ba2KNb5O15  6B-a8            
a9 Ba2RbNb5O15  6B-a9      
a10 Ba2AgNb5O15 [F]  6B-a10              
a11 Pb2NaNb5O15  6B-a11        
a12 Pb2KNb5O15 [F]  6B-a12                      

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
a13 Pb2RbNb5O15 [F]  6B-a13          
a14 Pb2AgNb5O15 [F]  6B-a14            
a15 AEuMNb5O15 (A = Sr, Ba; M = Na, K)  6B-a15      
a16 Sr4LiNaNb10O30  6B-a16          
a17 Sr4LiKNb10O30  6B-a17              
a18 Ba3NaRNb10O30 (R = Y, La, Gd)  6B-a18      
a19 Ba2Na3RNb10O30(R = Y, La, Eu, Gd, Dy)   6B-a19          
a20 BaNa2La2Nb10O30  6B-a20    
a21 Na2RNb5O15 (R = Y, Tb, Ho)  6B-a21      
a22 K2RNb5O15 (R = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho)  6B-a22      
a23 K2BiNb5O15  6B-a23              
a24 Rb2RNb5O15 (R = Pr, Sm)  6B-a24      
a25 Ca2KTa5O15  6B-a25    
a26 Sr2NaTa5O15  6B-a26        
a27 Sr2KTa5O15  6B-a27      
a28 Sr2AgTa5O15  6B-a28      
a29 Ba2LiTa5O15  6B-a29      
a30 Ba2NaTa5O15  6B-a30      
a31 Ba2KTa5O15  6B-a31    
a32 Ba2AgTa5O15  6B-a32      
a33 AEuMTa5O15 (A = Sr, Ba; M = Na, K)  6B-a33      
a34 Pb2NaTa5O15  6B-a34        
a35 Pb2KTa5O15  6B-a35      
a36 Pb2RbTa5O15  6B-a36      
a37 Na2RTa5O15(R = La, Ce, Pr, Nd, Gd, Ho)   6B-a37    
a38 K2RTa5O15 (R = Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Ho)  6B-a38    
a39 K2BiTa5O15  6B-a39      

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
a40 A6BNb9O30(A = Sr, Ba; B = Sc, Cr, Mn)   6B-a40    
a41 Sr6FeNb9O30  6B-a41          
a42 Ba6FeNb9O30  6B-a42        
a43 Ba6GaNb9O30  6B-a43      
a44 Ba6InNb9O30  6B-a44        
a45 Sr5NaTiNb9O30  6B-a45        
a46 Sr5KTiNb9O30  6B-a46        
a47 Ba5LiTiNb9O30  6B-a47      
a48 Ba5NaTiNb9O30  6B-a48        
a49 Ba5KTiNb9O30  6B-a49        
a50 Ba3Na3MoNb9O30  6B-a50      
a51 Ca3Na3WNb9O30  6B-a51        
a52 Ca3K3WNb9O30  6B-a52      
a53 Sr3Na3WNb9O30  6B-a53        
a54 Sr3K3WNb9O30  6B-a54        
a55 Ba3Na3WNb9O30  6B-a55        
a56 Ba3K3WNb9O30  6B-a56        
a57 Pb3K3WNb9O30  6B-a57        
a58 A6BTa9O30 (A = Sr, Ba, Pb; B = Sc, Cr, Mn, Fe, Ga)  6B-a58    
a59 AII 3AI 3WTa9O30 (AI = Na, K; AII = Ca, Sr, Ba, Pb)  6B-a59    
a60 Sr6Ti2Nb8O30  6B-a60        
a61 Ba6Ti2Nb8O30 [F]  6B-a61             
a62 Ba4Bi2Cr2Nb8O30  6B-a62      
a63 La4A2Cr2Nb8O30 (A = Li, Na, K)  6B-a63    
a64 Pb4R2Fe2Nb8O30 (R = La, Nd)  6B-a64    
a65 Sr4Yb2Fe2Nb8O30  6B-a65    
a66 Ba4R2Fe2Nb8O30 (R = Nd, Sm, Gd)  6B-a66      
a67 Ba4Bi2Fe2Nb8O30  6B-a67      
a68 Ba4Ce2Ni2Nb8O30  6B-a68      

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
a69 Ba2R4Ni2Nb8O30 (R = Nd, Sm)  6B-a69      
a70 Sr6Zr2Nb8O30  6B-a70      
a71 Ba6Zr2Nb8O30 [F]  6B-a71          
a72 Ba6Sn2Nb8O30  6B-a72        
a73 Ba6Hf2Nb8O30  6B-a73      
a74 Sr2K4Mo2Nb8O30  6B-a74      
a75 K5YW2Nb8O30  6B-a75        
a76 K5LaW2Nb8O30  6B-a76        
a77 K5BiW2Nb8O30  6B-a77    
a78 Ca2K4W2Nb8O30  6B-a78      
a79 Sr2Na4W2Nb8O30  6B-a79        
a80 Sr2K4W2Nb8O30  6B-a80        
a81 Ba2Na4W2Nb8O30  6B-a81        
a82 Ba2K4W2Nb8O30  6B-a82        
a83 Pb2Na4W2Nb8O30  6B-a83        
a84 Pb2K4W2Nb8O30  6B-a84        
a85 Sr6Ti2Ta8O30  6B-a85      
a86 Ba6Ti2Ta8O30  6B-a86      
a87 Sr6Sn2Ta8O30  6B-a87      
a88 Ba6Sn2Ta8O30  6B-a88      
a89 Ba6Hf2Ta8O30  6B-a89      
a90 AII 2AI 4W2Ta8O30 (AII = Ca, Sr, Ba, Pb; AI = Na, K)   6B-a90   
a91 Ba2R4Fe3Nb7O30 (R = Nd, Sm)  6B-a91        
a92 Pb2Nd4Fe3Nb7O30  6B-a92      
a93 Sr5LaTi3Nb7O30  6B-a93        
a94 Sr5BiTi3Nb7O30  6B-a94        
a95 Ba5LaTi3Nb7O30  6B-a95        
a96 Ba5BiTi3Nb7O30  6B-a96        
a97 BaK5W3Nb7O30  6B-a97    
a98 Nd6Fe4Nb6O30  6B-a98      

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
a99 Nd4Bi2Fe4Nb6O30  6B-a99      
a100 Sr4La2Ti4Nb6O30  6B-a100        
a101 Ba4La2Ti4Nb6O30  6B-a101        
a102 Ba4Bi4Ti4Nb6O30  6B-a102        
a103 Ag6W4Nb6O30  6B-a103      
a104 K6W4Ta6O30  6B-a104      
a105 Ba3La3Ti5Nb5O30  6B-a105        
a106 CaSrKNb5O15  6B-a106      
a107 CaBaNaNb5O15  6B-a107      
a108 CaBaKNb5O15  6B-a108      
a109 CaBaTlNb5O15  6B-a109        
a110 SrBaTlNb5O15  6B-a110        
a111 NaCsEuNb5O15 [F]  6B-a111          
a112 Ca2Sr4Ti2Nb8O30  6B-a112        
a113 Ca2Ba4Ti2Nb8O30  6B-a113        
a114 Sr2Ba4Ti2Nb8O30  6B-a114      
a115 Ba4Pb2Ti2Nb8O30  6B-a115    
6B-b A6(BpB'q)10O30-type ( p + q = 1)  
b1 A5NaB1/3Nb29/3O30(A = Sr, Ba; B = Mg, Co, Ni, Zn)   6B-b1    
b2 AII 5AIB1/2Nb19/2O30   6B-b2   
 (AII = Ca, Sr, Ba, Pb; 
 AI = Na, K; B = Cr, Fe, Ga)  
b3 A6B2/3Nb28/3O30(A = Sr, Ba; B = Co, Ni, Cu)   6B-b3        
b4 A6B2/3Ta28/3O30(A = Sr, Ba; B = Mg, Fe, Co, Ni, Zn)   6B-b4    
6B-c A6M4M'10O30-type  
c1 Na3Li2Nb5O15  6B-c1        
c2 K3Li2Nb5O15 (KLN) [F]  6B-c2                        
c3 K3Li2Ta5O15 (KLT) [F]  6B-c3          

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
c4 Ba4Na2Li4Ti4Nb6O30  6B-c4    
c5 La4Li6Ti8Nb2O30  6B-c5        
c6 LaLiTi2O6  6B-c6        
6B-d Others  
d1 Ba3Nb10O28  6B-d1      
d2 PbNb4O11 (PbOxNb2O5) [F]  6B-d2            
d3 Bi3Nb17O47  6B-d3        
d4 Ba2Bi1/3Nb5O15 [F]  6B-d4          
d5 KW2NbO9 [(F)]  6B-d5              
d6 RbW2NbO9 [(F)]  6B-d6              
d7 CaK2Nb5O14F  6B-d7      
d8 SrK2Nb5O14F  6B-d8        
d9 BaNa2Nb5O14F [F]  6B-d9        
d10 BaK2Nb5O14F  6B-d10      
d11 SrNaKNb5O14F  6B-d11      
d12 BaNaKNb5O14F  6B-d12      
d13 Sr2KTiNb4O14F  6B-d13      
d14 K3Fe5F15 [F]  6B-d14          
6C Solid solutions  
6C-a Systems with A5B10O30-type components  
a1 PbNb2O6-LiNbO3  6C-a1      
a2 PbNb2O6-NaNbO3  6C-a2      
a3 PbNb2O6-KNbO3  6C-a3          
a4 PbNb2O6-RbNbO3  6C-a4    
a5 PbNb2O6-CaNb2O6  6C-a5      
a6 PbNb2O6-SrNb2O6  6C-a6        
a7 PbNb2O6-CdNb2O6  6C-a7      
a8 PbNb2O6-BaNb2O6  6C-a8                    
a9 PbNb2O6-Sr2NaNb5O15  6C-a9      
a10 PbNb2O6-Pb2NaNb5O15  6C-a10      

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
a11 PbNb2O6-Pb2KNb5O15  6C-a11      
a12 PbNb2O6-Ba2NaNb5O15-Pb2NaNb5O15   6C-a12    
a13 PbNb2O6-K3Li2Nb5O15  6C-a13    
a14 PbNb2O6-K2BiNb5O15  6C-a14    
a15 PbNb2O6-R2/3Nb2O6 (R = Y, La, Sm)  6C-a15        
a16 PbNb2O6-M1/2Nb2O6 (M = Ce, Th, U)  6C-a16        
a17 PbNb2O6-Bi2/3Nb2O6  6C-a17        
a18 PbNb2O6-K1/2La1/2Nb2O6  6C-a18          
a19 PbNb2O6-K1/2Bi1/2Nb2O6  6C-a19        
a20 PbNb2O6-SrNb2O6-BaNb2O6  6C-a20      
a21 PbNb2O6-BaNb2O6-La2/3Nb2O6  6C-a21            
a22 PbNb2O6-PbTiO3  6C-a22         
a23 PbNb2O6-Bi4/3Ti2O6  6C-a23    
a24 PbNb2O6-BiTiNbO6  6C-a24    
a25 PbNb2O6-PbZrO3  6C-a25        
a26 PbNb2O6-PbOSnO2  6C-a26      
a27 PbNb2O6-PbTa2O6  6C-a27        
a28 PbTa2O6-SrTa2O6  6C-a28    
a29 PbTa2O6-Pb2NaTa5O15  6C-a29      
a30 PbTa2O6-Pb2KTa5O15  6C-a30      
a31 PbTa2O6-M1/2Ta2O6 (M = Ce, Th, U)  6C-a31      
a32 (Pb,Ba)(Nb,Ta)2O6  6C-a32      
a33 (Pb,Ca,Ba)(Nb,Ta)2O6  6C-a33      
a34 (Pb,Sr,Ba)(Nb,Ta)2O6  6C-a34      
6C-b Systems with A6B10O30-type components  
b1 Ca2NaNb5O15-Sr2NaNb5O15  6C-b1    
b2 Sr2NaNb5O15-Ba2NaNb5O15  6C-b2            
b3 Sr2NaNb5O15-Pb2NaNb5O15  6C-b3        
b4 Sr2NaNb5O15-Pb2KNb5O15  6C-b4        
b5 Sr2NaNb5O15-Sr2NaTa5O15  6C-b5    

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
b6 Sr2NaNb5O15-Na6Mo4Nb6O30  6C-b6      
b7 Sr2NaNb5O15-Na6W4Nb6O30  6C-b7      
b8 Sr2KNb5O15-(K,M)Nb5O15(M = Ce, Th, U)   6C-b8    
b9 Sr2KNb5O15-SrM1/2KNb5O15(M = Ce, Th, U)   6C-b9      
b10 Sr2KNb5O15-Ba2KNb5O15  6C-b10        
b11 Sr2KNb5O15-Pb2KNb5O15  6C-b11      
b12 Sr2KNb5O15-Sr2KTa5O15  6C-b12    
b13 Sr2KNb5O15-K6Mo4Nb6O30  6C-b13        
b14 Sr2KNb5O15-K6W4Nb6O30  6C-b14      
b15 Sr2KNb5O15-SrK2Nb5O14F  6C-b15      
b16 Sr2KNb5O15-Sr2KTiNb4O14F  6C-b16        
b17 Sr2AgNb5O15-Sr2AgTa5O15  6C-b17        
b18 Sr2TlNb5O15-SrM1/2TlNb5O15(M = Ce, Th, U)   6C-b18      
b19 Ba2LiNb5O15-Ba2NaNb5O15  6C-b19            
b20 Ba2LiNb5O15-Ba2LiTa5O15  6C-b20        
b21 Ba2NaNb5O15-Ba2KNb5O15  6C-b21              
b22 (Sr,Ba)2(Li,Na)Nb5O15  6C-b22        
b23 (Sr,Ba)2(Li,K)Nb5O15  6C-b23        
b24 (Sr,Ba)2(Na,K)Nb5O15  6C-b24                  
b25 Ba2NaNb5O15-Pb2NaNb5O15  6C-b25          
b26 Ba2NaNb5O15-Pb2KNb5O15  6C-b26        
b27 Ba2NaNb5O15-Ba2Na3LaNb10O30  6C-b27      
b28 Ba2NaNb5O15-Ba2LaLiNa2Nb10O30  6C-b28        
b29 Ba2NaNb5O15-Ba6InNb9O30  6C-b29    
b30 Ba2NaNb5O15-Ba2NaTa5O15  6C-b30      
b31 (Ba,Pb)2Na(Nb,Ta)5O15  6C-b31      
b32 Ba2NaNb5O15-Ba6Ti2Nb8O30  6C-b32              
b33 Ba2NaNb5O15- Ba2LaCrNb4O15  6C-b33    
b34 Ba2NaNb5O15-Na6Mo4Nb6O30  6C-b34      

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
b35 Ba2NaNb5O15-Na6W4Nb6O30  6C-b35        
b36 Ba2NaNb5O15-BaNa2Nb5O14F  6C-b36      
b37 Ba2NaNb5O15-Ba4Na2TiNb9O29F  6C-b37        
b38 Ba2KNb5O15-Pb2KNb5O15  6C-b38      
b39 Ba2KNb5O15-Ba2KTa5O15  6C-b39    
b40 Ba2AgNb5O15-Ba2Ag3RNb10O30 (R = La, Pr)  6C-b40        
b41 Pb2NaNb5O15-Pb2KNb5O15  6C-b41    
b42 Pb2NaNb5O15-K6W4Nb6O30  6C-b42        
b43 Pb2(K,Li)Nb5O15  6C-b43      
b44 (Pb,M1/2)2KNb5O15 (M = Ce, Th, U)  6C-b44        
b45 Pb2KNb5O15-Pb2RbNb5O15  6C-b45    
b46 Pb2KNb5O15-Ba6Ti2Nb8O30  6C-b46    
b47 Pb2KNb5O15-Ba6Zr2Nb8O30  6C-b47    
b48 Pb2KNb5O15-K6W4Nb6O30  6C-b48          
b49 Pb2KNb5O15-Pb2KLiTiNb4O15  6C-b49        
b50 Pb2KNb5O15-Pb2KTa5O15  6C-b50        
b51 K2LaNb5O15-Pb2KNb5O15  6C-b51      
b52 K2BiNb5O15-Pb2NaNb5O15  6C-b52    
b53 K2BiNb5O15-Pb2KNb5O15  6C-b53    
b54 Sr2KTa5O15-SrM1/2KTa5O15 (M = Ce, Th, U)  6C-b54      
b55 Sr2TlTa5O15-SrM1/2TlTa5O15(M = Ce, Th, U)   6C-b55      
b56 Ba2NaTa5O15-BaTa2O6  6C-b56    
b57 Pb2KTa5O15-PbM1/2KTa5O15(M = Ce, Th, U)   6C-b57      
b58 CaBaKNb5O15-BaM1/2KNb5O15(M = Ce, Th, U)   6C-b58      
b59 CaBaTlNb5O15-BaM1/2TlNb5O15(M = Ce, Th, U)   6C-b59      

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
b60 SrBaKNb5O15-BaM1/2KNb5O15(M = Ce, Th, U)   6C-b60      
b61 SrBaTlNb5O15-BaM1/2TlNb5O15(M = Ce, Th, U)   6C-b61      
b62 CaBaKTa5O15-BaM1/2KTa5O15(M = Ce, Th, U)   6C-b62      
b63 CaBaTlTa5O15-BaM1/2TlTa5O15 M = (Ce, Th, U)  6C-b63      
b64 SrBaKTa5O15-BaM1/2KTa5O15(M = Ce, Th, U)   6C-b64      
b65 SrBaTlTa5O15-BaM1/2TlTa5O15(M = Ce, Th, U)   6C-b65      
6C-c Systems with M6M'4M"10O30-type components  
c1 Na3Li2Nb5O15-K3Li2Nb5O15  6C-c1        
c2 Na3Li2Nb5O15-K2BiNb5O15  6C-c2    
c3 Na3Li2Nb5O15-Pb2KNb5O15  6C-c3    
c4 K3Li2Nb5O15-K2BiNb5O15  6C-c4    
c5 K3Li2Nb5O15-Pb2NaNb5O15  6C-c5    
c6 K3Li2Nb5O15-Pb2KNb5O15  6C-c6           
c7 K3Li2Nb5O15-K3Li2Ta5O15  6C-c7              
6C-d Systems with AB2O6-type components  
d1 CaNb2O6-BaNb2O6  6C-d1      
d2 SrNb2O6-BaNb2O6 (SBN)  6C-d2                              
d3 CaNb2O6-SrNb2O6-BaNb2O6  6C-d3          
d4 SrNb2O6-BaNb2O6-NaNbO3  6C-d4              
d5 SrNb2O6-BaNb2O6-La2/3Nb2O6  6C-d5    
d6 (Sr,Ba)Nb2O6-(Sr,Ba)5Li2Ti2Nb8O30   6C-d6      
d7 (Sr,Ba)Nb2O6-(Sr,Ba)2TiNb4O14F  6C-d7        

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
6C-e Others  
e1 SrNb2O6-KNbO3-LaNb3O9  6C-e1        
e2 BaNb2O6-LiNbO3-KNbO3  6C-e2      
e3 BaNb2O6-NaNbO3-KNbO3  6C-e3      
e4 BaNb2O6-NaNbO3-RbNbO3  6C-e4      
e5 BaNb2O6-NaNbO3-LaNb3O9  6C-e5    
e6 BaNb2O6-LiNbO3-BaTiO3  6C-e6      
e7 BaNb2O6-NaNbO3-BaTiO3  6C-e7       
e8 K2O-Nb2O5-WO3  6C-e8            
e9 KNbO3-M1/4NbO3 (M = Ce, Th, U)  6C-e9        
e10 (K,Th)3(Nb,Te)5O15  6C-e10      
e11 CdO-K2O-Ta2O5  6C-e11      
7 Pyrochlore-type oxides  
7A Pure compounds  
1 Cd2Nb2O7 [F]  7A-1                            
2 Cd2Nb2O6S [(A), F]  7A-2              
3 Pb2Nb2O7  7A-3                
4 Cd2Ta2O7  7A-4          
5 Bi2ScNbO7  7A-5          
6 Bi2FeNbO7  7A-6           
7 Bi2(Mg2/3Nb4/3)O7  7A-7          
8 Bi2(Ni2/3Nb4/3)O7  7A-8        
9 Pb2(Mg0.32Nb1.87)O7  7A-9           
10 AA'BB'O7  7A-10        
7B Anion deficient compounds  
1 Tl2Ta2O6  7B-1          
2 Cd2BB'O6(B = Sc, Cr, Mn, Fe, Sb; B' = Nb, Ta)   7B-2        

No.  Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
3  Pb2BB'O6 (B' = Nb, Ta; B = Sc, Cr, Fe, Ga, Sb, Bi)  7B-3      
4  Pb2B1/2B'1/2B"O6(B = Li, Ca, Ti, Cd; B' = Ti, Mn, W; B" = Sn, Nb, Ta)   7B-4    
5  Pb2Li1/2Nb3/2O6  7B-5              
6  Pb2(B2/3B'4/3)O6(B = Ni, Cu, Zn, Cd; B' = Nb, Ta)   7B-6      
7  Pb2InmNbnO6  7B-7                
8  Bi2Mg4/3Ta2/3O6  7B-8      
9  Bi2Zn4/3Ta2/3O6  7B-9        
7C  Solid solutions  
1  Cd2Nb2O7-Mg2Nb2O7  7C-1    
2  Cd2Nb2O7-Ca2Nb2O7  7C-2      
3  Cd2Nb2O7-Pb2Nb2O7  7C-3      
4  Cd2Nb2O7-Cd2Ta2O7  7C-4      
5  (Cd,Pb)2(Nb,Ta)2O7  7C-5      
6  Cd2Nb2O7-CdANb2O7(A = Mg, Mn, Fe, Co, Ni, Cu, Zn)   7C-6    
7  Cd2Nb2O7-Cd2NbSbO7  7C-7    
8  Cd2Nb2O7-CdBiNbTiO7  7C-8    
9  Cd2Nb2O7-CdBiNb5/3Zn1/3O7  7C-9    
10  Cd2Nb2O7-Cd4/3BiNb5/3O7  7C-10    
11  Cd2Nb2O7-NaGdNbTiO6F  7C-11        
12  Cd2Nb2O7-CdGdTi2O6F  7C-12      
13  Cd2Nb2O7-Cd2SnO5F2  7C-13        
14  Cd2Nb2O7-Cd2Nb2O6S  7C-14      
15  Cd2Nb2O7-CdZnNb2O6S  7C-15      
16  Cd2Nb2O6S-CdBNb2O6S (B = Mn, Fe, Co, Ni, Cu, Zn)  7C-16    
17  Pb2Nb2O7-PbNaNb2O6F  7C-17        

No.  Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
8  Sr2Nb2O7 family  
8A  Pure compounds  
1  La2Ti2O7 [F]  8A-1                        
2  Pr2Ti2O7  8A-2    
3  Nd2Ti2O7 [F]  8A-3                
4  Ca2Nb2O7 [F]  8A-4              
5  Sr2Nb2O7 [F]  8A-5                          
6  Sr2Ta2O7 [F]  8A-6                      
8B  Solid solutions  
1  La2Ti2O7-Sr2Ta2O7  8B-1      
2  Ca2Nb2O7-Sr2Ta2O7  8B-2    
3  Sr2Nb2O7-Ba2Nb2O7  8B-3    
4  Sr2Nb2O7-Pb2Nb2O7  8B-4    
5  Ca2Ta2O7-Sr2Ta2O7  8B-5      
6  Sr2Nb2O7-Sr2Ta2O7  8B-6          
9  Layer-structure oxides  
9A  Pure compound of simple type  
1  Bi2WO6 [(F)]  9A-1                      
2  Bi2MoO6 [(F)]  9A-2               
3  Bi3TiNbO9 [(F)]  9A-3              
4  Bi3TiTaO9  9A-4          
5  K0.5Bi2.5Nb2O9  9A-5    
6  Na0.5Bi2.5Nb2O9  9A-6    
7  CaBi2Nb2O9  9A-7          
8  SrBi2Nb2O9 [(F)]  9A-8          
9  BaBi2Nb2O9 [(F)]  9A-9          
10  PbBi2Nb2O9 [(F)]  9A-10           
11  CaBi2Ta2O9  9A-11          

No.  Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
12  SrBi2Ta2O9 [F]  9A-12            
13  BaBi2Ta2O9 [(F)]  9A-13          
14  PbBi2Ta2O9 [F]  9A-14          
15  Bi4Ti3O12 [F]  9A-15                            
16  BaBi3Ti2NbO12  9A-16      
17  PbBi3Ti2NbO12  9A-17        
18  Na0.5Bi4.5Ti4O15  9A-18          
19  K0.5Bi4.5Ti4O15  9A-19          
20  CaBi4Ti4O15  9A-20            
21  SrBi4Ti4O15  9A-21                
22  BaBi4Ti4O15 [F]  9A-22                
23  PbBi4Ti4O15  9A-23                
24  BiBi4Ti3FeO15  9A-24        
25  Sr2Bi4Ti5O18 [F]  9A-25            
26  Ba2Bi4Ti5O18 [F]  9A-26              
27  Pb2Bi4Ti5O18 [F]  9A-27          
28  Pr2Bi4Ti3Fe2O18  9A-28          
29  (Pr,Bi)Bi4Ti3Fe2O18  9A-29      
30  Bi2Bi4Ti3Fe2O18  9A-30      
31  Bi6Ti3WO18 [(F)]  9A-31             
32  Bi7Ti4NbO21  9A-32          
33  Bi7Ti3Fe3O21  9A-33    
34  Bi7Ti2.5Sn0.5Fe3O21  9A-34    
35  Bi9Ti3Fe5O27  9A-35      
36  Bi10Ti3W3O30 [(F)]  9A-36          
9B  Solid solutions and complex compounds  
1  Bi2(Me0.5Nbx)O6-x/2 (M = Mo, W)  9B-1    
2  Bi2-xLaxWO6  9B-2          
3  SrBi2Nb2O9-PbBi2Nb2O9  9B-3    
4  BaBi2Nb2O9-PbBi2Nb2O9  9B-4      
5  Bi2Pb1-xMxNb2O9  9B-5        

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
6 Bi2Pb1-xMx/2Lax/2Nb2O9 (M= Li, Na, K)  9B-6    
7 MBi2-xTlxNb2O9 (M = Sr, Ba, Pb)  9B-7    
8 Sr1-xBaxBi2Ta2O9  9B-8            
9 Bi3-xMxTi1-xNb1+xO9 (M = Sr, Ba, Pb)  9B-9        
10 Bi3-xPbxTiNb1-xWxO9  9B-10      
11 Bi3-xPbxTi1+xW1-xO9  9B-11      
12 Bi4-xLaxTi3O12  9B-12        
13 Bi4-xTlxTi3O12  9B-13    
14 Bi4-xMxTi3-xNbxO12 (M = Sr, Ba, Pb)  9B-14        
15 (Na1/2Bi1/2)1-xMxBi4Ti4O15(M = Ca, Sr, Ba, La, Pb, K1/2Bi1/2)   9B-15        
16 Pb1-x(Na1/2Ce1/2)xBi4Ti4O15  9B-16          
17 PbLaxBi4-xTi4O15  9B-17    
10 BaAl2O4-type oxides  
10A Pure compounds  
1 BaZnGeO4 [F]  10A-1                        
10B Solid solutions  
1 Ba(Al1-xLix)2(O1-xFx)4  10B-1            
11 LaBGeO5  
11A Pure compounds  
1 LaBGeO5 [F]  11A-1                  
12 LiNaGe4O9-type oxides  
12A Pure compounds  
1 LiNaGe4O9 [F]  12A-1          
2 Li2Ge4O9 [F]  12A-2          

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
12B Solid solutions  
1 Li2-xNaxGe4O9  12B-1        
13 Li2Ge7O15 family  
13A Pure compounds  
1 Li2Ge7O15 [F]  13A-1                            
13B Solid solutions  
1 (Li1-xNax)2Ge7O15  13B-1          
2 Li2(Ge1-xSix)7 O15  13B-2      
14 Pb5Ge3O11 family  
14A Pure compounds  
1 Pb5Ge3O11 [F]  14A-1                                
14B Solid solutions  
1 (Pb1-xSrx)5Ge3O11  14B-1          
2 (Pb1-xBax)5Ge3O11  14B-2               
3 (Pb1-xBix)5Ge3O11  14B-3    
4 (Pb1-xCsx/2Bix/2)5Ge3O11  14B-4      
5 Pb5(Ge1-xTix)3O11  14B-5    
6 Pb5(Ge1-xSix)3O11  14B-6                
7 Pb5Ge3O11-xFx  14B-7        
15 5PbO22P2O5  
15A Pure compounds  
1 5PbO22P2O5 [(F)]  15A-1            

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
16 Ca3(VO4)2 family  
16A Pure compounds  
1 Ca3(VO4)2 [(F)]  16A-1                          
2 Pb3(VO4)2 [(F)]  16A-2                  
16B Solid solutions  
1 Ca3(VO4)2-Pb3(VO4)2  16B-1      
2 Pb3(VO4)2-Pb3(PO4)2  16B-2                  
17 Gd2(MoO4)3 (GMO) family  
17A Pure compounds  
1 Sm2(MoO4)3 [F]  17A-1                
2 Eu2(MoO4)3 [F]  17A-2              
3 Gd2(MoO4)3 [F]  17A-3                           
4 Tb2(MoO4)3 [F]  17A-4                           
5 Dy2(MoO4)3 [(F)]  17A-5              
17B Solid solutions  
1 Nd2(MoO4)3-Sm2(MoO4)3  17B-1      
2 Sm2(MoO4)3-Gd2(MoO4)3  17B-2            
3 Eu2(MoO4)3-Gd2(MoO4)3  17B-3        
4 Eu2(MoO4)3-Tb2(MoO4)3  17B-4          
5 Gd2(MoO4)3-Y2(MoO4)3  17B-5        
6 Gd2(MoO4)3-Nd2(MoO4)3  17B-6          
7 Gd2(MoO4)3-Tb2(MoO4)3  17B-7              
8 Gd2(MoO4)3-Dy2(MoO4)3  17B-8                
9 Gd2(MoO4)3-Ho2(MoO4)3  17B-9        
10 Gd2(MoO4)3-Er2(MoO4)3  17B-10      
11 Gd2(MoO4)3-Yb2(MoO4)3  17B-11        
12 Gd2(MoO4)3-Bi2(MoO4)3  17B-12          
13 Gd2(MoO4)3-Tb2(MoO4)3-Dy2(MoO4)3  17B-13      
14 Gd2(MoO4)3-Gd2(WO4)3  17B-14          

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
18 Boracite-type family 18A Pure compounds  
1 Mg3B7O13Cl [F]  18A-1                        
2 Cr3B7O13Cl [F, A]  18A-2                   
3 Mn3B7O13Cl  18A-3                    
4 Fe3B7O13Cl [F]  18A-4                    
5 Co3B7O13Cl [F]  18A-5                    
6 Ni3B7O13Cl [F]  18A-6                  
7 Cu3B7O13Cl  18A-7                      
8 Zn3B7O13Cl [F]  18A-8                  
9 Cd3B7O13Cl [F]  18A-9                  
10 Mg3B7O13Br  18A-10        
11 Cr3B7O13Br  18A-11          
12 Mn3B7O13Br [F]  18A-12             
13 Fe3B7O13Br [F]  18A-13                   
14 Co3B7O13Br  18A-14                
15 Ni3B7O13Br  18A-15                    
16 Cu3B7O13Br [F]  18A-16                    
17 Zn3B7O13Br  18A-17            
18 Cd3B7O13Br [F]  18A-18                
19 Cr3B7O13I  18A-19          
20 Mn3B7O13I  18A-20              
21 Fe3B7O13I [F]  18A-21                          
22 Co3B7O13I [F]  18A-22                      
23 Ni3B7O13I [F]  18A-23                         
24 Cu3B7O13I  18A-24      
25 Zn3B7O13I  18A-25             
26 Cd3B7O13I  18A-26         
27 Li4B7O12X (X = Cl, Br, I)  18A-27      
28 Li5B7O12.5Cl  18A-28    

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
18B Solid solutions  
1 Ni3B7O13Cl-Ni3B7O13Br  18B-1      
19 Rb3MoO3F3 family  
19A Pure compounds  
1 Rb3MoO3F3 [F]  19A-1              
2 Na3MoO3F3 [(F)]  19A-2        
3 K3MoO3F3 [F]  19A-3              
4 Na3WO3F3 [(F)]  19A-4        
19B Solid solutions  
1 A2BMO3F3 (A, B = K, Rb, Cs;  M = Mo, W)  19B-1          
M Miscellaneous crystals  
M1 TiO2  M1                    
M2 WO3  M2                          
M3 NaVO3 group  
M3-i LiVO3 [(F)]  M3-i                
M3-ii NaVO3 [F]  M3-ii                
M3-iii KVO3  M3-iii              
M3-iv RbVO3 [(F)]  M3-iv            
M3-v CsVO3 [(F)]  M3-v             
M3-vi (Li,Na)VO3  M3-vi      
M3-vii (Li,K)VO3  M3-vii        
M3-viii (Na,K)VO3  M3-viii      
M3-ix (Na,Rb)VO3  M3-ix      
M3-x (Na,Cs)VO3  M3-x      
M3-xi (K,Cs)VO3  M3-xi        
M4 Fe3O4 [(F)]  M4              
M5 RVO4 (R = Sc, Nd, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) [F]  M5                        

No. Substance  No.   Fundamentals   Material preparation   Crystal structure   Lattice distortion   Dielectric properties   Thermal properties  Electromechanical  Elastic properties   Optical properties   Light scattering  Conduction   Magnetism   NMR, ESR   Local structures  Domains Miscellanea  
M6 RAsO4 (R = Pr, Nd, Eu, Gd, Tb, Dy, Er, Yb) [F]  M6                
M7 Cr2BeO4 [(F)]  M7          
M8 RMn2O5 group (R = Y, Eu, Gd, Tb, Dy, Bi)  
M8-i YMn2O5 [(F)]  M8-i              
M8-ii EuMn2O5  M8-ii            
M8-iii GdMn2O5 [F]  M8-iii            
M8-iv TbMn2O5 [F]  M8-iv              
M8-v DyMn2O5  M8-v              
M8-vi BiMn2O5  M8-vi            
M9 Pb3TeO6 [(F)]  M9            
M10 Li2B4O7  M10                        
M11 Ag26I18W4O16 [(F)]  M11                
M12 Sr8[Al12O24](CrO4)2 [F]  M12              
M13 Pb5Mo3O9F10 group  
M13-i Pb5Mo3O9F10  M13-i        
M13-ii Pb5W3O9F10 [F]  M13-ii                
M14 Pb5Cr3F19 group  
M14-i Pb5Al3F19 [(F)(A)]  M14-i                
M14-ii Pb5Ti3F19  M14-ii      
M14-iii Pb5V3F19  M14-iii        
M14-iv Pb5Cr3F19 [F]  M14-iv                
M14-v Pb5Fe3F19  M14-v        
M14-vi Pb5Ga3F19  M14-vi      
M14-vii A5M3F19 (A = Sr, Ba; M = Al, Ti, V, Cr, Fe, Ga)  M14-vii          
M14-viii Pb5Cr3F19-Pb5Al3F19  M14-viii          
M14-ix Pb5Cr3F19-Pb5Fe3F19  M14-ix      
M14-x Pb5Cr3F19-Sr5Al3F19  M14-x    
M14-xi Sr5Cr3F19-Sr5Al3F19  M14-xi    



