## Structural and Magnetic Phase Transitions in MineralsThis volume in Advances in Physical Geochemistry presents the latest synthesis of theory and experimental data pertaining to structural and magnetic phase transitions in a variety of geochemically important minerals. The book is the first to cover the impact of this rapidly progressing area of solid state physics in earth sciences and reflects its growing significance for mineralogy and petrology. |

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Results 1-3 of 33

Page 20

The hexagonal

vectors a and b , making an angle of 120 ° and perpendicular to c , with

parameters a = b = 5.0 Å and c = 5.46 Å . Although the

SiO2 ...

The hexagonal

**unit**cell is a right prism built on a base formed by two equalvectors a and b , making an angle of 120 ° and perpendicular to c , with

**unit**cellparameters a = b = 5.0 Å and c = 5.46 Å . Although the

**unit**cell contains threeSiO2 ...

Page 109

The predicted absolute density is too low , but the predicted pressure - induced

structural changes are consistent with data : pressure increases internal strains in

the orthorhombic

...

The predicted absolute density is too low , but the predicted pressure - induced

structural changes are consistent with data : pressure increases internal strains in

the orthorhombic

**unit**cell but leaves the latter's aspect ratios virtually unchanged...

Page 131

Every cell contains four crystallographic

Ly , and Ly . The termination error is sufficiently small when Lcut is properly

chosen ( 8 to 10 Å or greater ) . In the MD calculation of crystalline systems , the

basic ...

Every cell contains four crystallographic

**unit**cells . minimum length among Ly ,Ly , and Ly . The termination error is sufficiently small when Lcut is properly

chosen ( 8 to 10 Å or greater ) . In the MD calculation of crystalline systems , the

basic ...

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### Contents

Incommensurate Phase Transitions in Quartz and Berlinite | 17 |

Phase Separation in Quadrilateral Pyroxenes and Olivines | 39 |

Multicritical Phase Relations in Minerals | 60 |

Copyright | |

7 other sections not shown

### Other editions - View all

Structural and Magnetic Phase Transitions in Minerals S. Ghose,J.M.D. Coey,E. Salje Limited preview - 2012 |

### Common terms and phrases

antiferromagnetic appears applied approximation atoms axis Ballet behavior bond calculated cation Chem chemical cluster Coey components composition constant corresponding coupling critical crystal decreases density dependence described determined diffraction direction disordered Dolino effect electron energy equilibrium estimated et al exchange experimental experiments Fe2+ Fe3+ ferromagnetic field function Ghose give given heat ilvaite inc phase increases indicate interactions ions iron lattice layers Lindsley lower mantle magnetic magnetic order materials measurements Mineral mode Mössbauer natural neutron observed obtained occur octahedral olivines order parameter pairs perovskite phase diagrams phase transition Phys physical pigeonite polytypes positions possible potential predicted pressure properties pyroxenes quartz range respectively Salje sample shown shows silicates solid solution space group spin stability structure symmetry Table temperature theory thermodynamic tion transformation unit variation