Table of contents 

Magnetic properties of non-metallic inorganic compounds based on transition 
elements 

Subvolume I 5a: Phyllosilicates 

List of frequently used symbols and abbreviations .............................. X 
Symbols ................................................... X 
Abbreviations..... ........................................... XII 


8 Magnetic and related properties of silicates and phosphates ................... 1 


8.1 Silicates (E. BURZO)....................................... 1 


8.1.1 Orthosilicates ...............................


8.1.2 Sorosilicates................................


8.1.3 Cyclosilicates ...............................


8.1.4 Inosilicates ................................


see subvolume III/27I1 
see subvolume III/27I2 
see subvolume III/27I3 
see subvolume III/27I4 

8.1.5 Phyllosilicates .......................................... 1 


8.1.5.1 Gillespite group of silicates ................................... 1 


8.1.5.1.1 Crystal structures. Lattice parameters .............................. 1


8.1.5.1.2 Magnetic properties ....................................... 4 


8.1.5.1.3 Nuclear gamma resonance (NGR) data ............................. 4


8.1.5.1.4 Optical properties ........................................ 4
Tables and figures ........................................ 6 
References for 8.1.5.1 ..................................... 15 


8.1.5.2 Apophyllite-type silicates ................................... 16


8.1.5.2.1 Crystal structures. Lattice parameters ............................. 16 


8.1.5.2.2 Magnetic properties ...................................... 18 


8.1.5.2.3 Nuclear magnetic resonance (NMR) data ........................... 18 


8.1.5.2.4 Optical properties ....................................... 18 
Tables and figures ....................................... 20 
References for 8.1.5.2 ..................................... 29 


8.1.5.3 Natrolites and related silicates ................................. 30 


8.1.5.3.1 Crystal structures. Lattice parameters ............................. 30 


8.1.5.3.2 Nuclear magnetic resonance (NMR) data ........................... 36 


8.1.5.3.3 Optical properties ....................................... 38 
Tables and figures ....................................... 40 
References for 8.1.5.3 ..................................... 57 



8.1.5.4 Pyrophyllite, talc and related silicates ............................. 59 


8.1.5.4.1 Crystal structures. Lattice parameters ............................. 59 


8.1.5.4.2 Neutron diffraction data .................................... 65 


8.1.5.4.3 Magnetic properties ...................................... 66 


8.1.5.4.4 Nuclear gamma resonance (NGR) data ............................ 68 


8.1.5.4.5 Nuclear magnetic resonance (NMR) data ........................... 69 


8.1.5.4.6 Heat capacity ......................................... 71 


8.1.5.4.7 Optical studies ........................................ 71 
Tables and figures ....................................... 74 
References for 8.1.5.4 ..................................... 105 


8.1.5.5 True micas .......................................... 108 


8.1.5.5.1 Crystal structures. Lattice parameters ............................. 108 


8.1.5.5.1.1 Nomenclature of the micas .................................. 108 


8.1.5.5.1.2 Order-Disorder (OD) theory.................................. 109 


8.1.5.5.1.3 Dioctahedral micas ...................................... 121 


8.1.5.5.1.4 Trioctahedral micas ...................................... 129 


8.1.5.5.2 Neutron diffraction data .................................... 140 


8.1.5.5.3 Magnetic properties ...................................... 141 


8.1.5.5.4 Nuclear gamma resonance (NGR) data ............................ 145 


8.1.5.5.5 Nuclear magnetic resonance (NMR) data ........................... 158 


8.1.5.5.6 Heat capacity ......................................... 162 


8.1.5.5.7 Electrical resistivities ..................................... 163 


8.1.5.5.8 X-ray absorption spectroscopy data .............................. 164 


8.1.5.5.9 Optical properties ....................................... 167 


8.1.5.5.10 Dielectric properties...................................... 175 
Appendix 1. Nomenclature of polytype structure ....................... 176 
Tables and figures ....................................... 177 
References for 8.1.5.5 ..................................... 274 


8.1.5.6 Brittle micas and related silicates ............................... 292 


8.1.5.6.1 Crystal structures. Lattice parameters ............................. 292 


8.1.5.6.2 Nuclear gamma resonance (NGR) data ............................ 297 


8.1.5.6.3 Nuclear magnetic resonance (NMR) data ........................... 297 


8.1.5.6.4 X-ray absorption spectra ................................... 298 


8.1.5.6.5 Optical properties ....................................... 298 
Tables and figures ....................................... 300 
References for 8.1.5.6 ..................................... 316 


8.1.5.7 Interlayer deficient micas, stilpnomelane, ganophyllite group and related silicates ...... 318 

8.1.5.7.1 Crystal structures. Lattice parameters ............................. 318 


8.1.5.7.2 Nuclear gamma resonance (NGR) data ............................ 330 


8.1.5.7.3 Electron spin resonance (ESR) data .............................. 331 


8.1.5.7.4 Nuclear magnetic resonance (NMR) data ........................... 331 


8.1.5.7.5 Infrared and optical data.................................... 333 
Tables and figures ....................................... 335 
References for 8.1.5.7 ..................................... 361 


8.1.5.8 Smectites and related silicates ................................. 366 


8.1.5.8.1 Crystal structures. Lattice parameters ............................. 366 


8.1.5.8.2 Magnetic properties ...................................... 389 


8.1.5.8.3 Neutron diffraction data .................................... 395 


8.1.5.8.4 Nuclear gamma resonance (NGR) data ............................ 396 


8.1.5.8.5 Electron spin resonance (ESR) data .............................. 404 


8.1.5.8.6 Nuclear magnetic resonance (NMR) data ........................... 407 


8.1.5.8.7 Electrical resistivities ..................................... 417 



8.1.5.8.8 Heat capacity ......................................... 419 


8.1.5.8.9 Dielectric properties...................................... 419 


8.1.5.8.10 XAFS studies ......................................... 419 


8.1.5.8.11 Infrared and Raman spectra .................................. 420 


8.1.5.8.12 Optical spectra ........................................ 427 
Tables and figures ....................................... 430 
References for 8.1.5.8 ..................................... 518 



