ALBERT

Note: Contents: Preface to the Second Edition. - Preface to the First Edition. - 1. INTRODUCTION AND HISTORICAL BACKGROUND. - History. - The Discovery of X-Rays. - The Discovery of X-Ray Diffraction. - History of Clay Mineralogy. - The Importance of Clay Mineralogy. - Box 1.1 Clay Minerals as Catalysts. - The Literature of Clay Mineralogy. - Summary. - References. - 2. NATURE AND PRODUCTION OF X-RAYS. - Box 2.1 Other Methods. - Safety and Protection. - Box 2.2 Defining a Dose of Radiation. - The Nature or X-Rays. - Continuous or White Radiation. - Characteristic Radiation. - General Absorption of X-Rays. - Characteristic Absorption. - Equipment for Producing and Recording X-Rays. - Stabilizing the Voltage. - Generating X-Rays. - The Diffractometer. - Step-Scanning with Automated Diffractometers. - The Single-Crystal Monochromator. - The Detector. - Signal Processing Circuitry. - The Strip-Chart Recorder. - An Example of a Checklist for Operating XRD Equipment. - Summary. - References. - 3. X-RAY DIFFRACTION. - Scattering. - Interference. - Scattering from a Row of Atoms. - Scattering from a Three-Dimensional Array of Atoms. - Bragg's Law. - Box 3.1 Diffraction and Reflection. - The Arithmetic of Scattering. - The Summation of Scattering Amplitudes. - The Structure Factor F. - Information from Intensity. - The Reciprocal Lattice. - Real versus Idealized Peaks on XRD Tracings. - The Interference Function F: Diffraction from a Crystal. - Whose Unit Cell Has a Unitary Scattering Factor. - The Lorentz-Polarization Factors. - Putting It All Together—Building an 001 Diffraction Pattern. - Exercise: Calculation of the Intensity from d(001) for Illite. - Points to Remember. - References. - 4. STRUCTURE AND PROPERTIES: GENERAL TREATMENT. - General Structural Features. - Tetrahedral Sheets. - Octahedral Sheets. - Dioctahedral and Trioctahedral. - Joining the Sheets. - Stacking the Layers. - Properties. - Total Charge, Layer or Permanent Charge, and Variable Charge. - Electric Double Layer. - Exchangeable Ions or Cation-Exchange Capacity. - Interaction of Water with Clay Mineral Surfaces. - Interaction with Organic Compounds. - Classification. - Box 4.1 Nomenclature. - References. - 5. STRUCTURE, NOMENCLATURE, AND OCCURRENCES OF CLAY MINERALS. - The Individual Clay Minerals. - The 1:1 Layer Type. - Serpentine minerals. - Berthierine. - Odinite. - Kaolin minerals. - Box 5.1 Uses of Kaolinite. - Allophane and imogolite. - The 2:1 Layer Type, x = 0. - The 2:1 Layer Type, x ~ 1. - The trioctahedral subgroup. - The dioctahedral subgroup. - The 2:1 Layer Types with x 〈 1. - Illite. - Glauconite. - Smectite. - Box 5.2 Alteration of Ash-Fall Layers. - Vermiculite. - Chlorite. - Mixed-Layered Clay Minerals. - Mixed-layering, interlayering, and interstratification. - Illite/smectite (I/S). - Box 5.3 Reichweite or Ordering. - Models for smectite-to-illite transition. - MacEwan crystallite model. - Fundamental particle model. - Two-solid-solution model. - Chlorite/smectite (C/S). - Serpentine/chlorite. - Kaolinite/expandables (K/E). - Sepiolite and Palygorskite. - The Origin of Clay Minerals. - Summary. - Exercise: Calculating Structural Formulas. - Exercise: Making Structural Models of Layer Silicates. - References. - 6. SAMPLE PREPARATION TECHNIQUES FOR CLAY MINERALS. - Evaluating the Sample. - Disaggregating the Rock. - Separating Clay Minerals from Clastic Rocks. - Separating Clay Minerals from Carbonate Rocks. - Separating Clay Minerals from Sulfate Rocks. - Separating Clay Minerals from Unconsolidated Materials. - Box 6.1 Glacial Deposits, North American Interior. - Chemical Pretreatments. - Removal of Iron Oxides. - Removal of Organic Materials. - Saturating the Clay Minerals with Different Cations. - Particle-Size Separation. - Preparing the Oriented Clay Mineral Aggregates. - The Glass Slide Method. - The Smear Mount Method. - The Millipore® Filter Transfer Method. - The Centrifuged Porous Plate Method. - Dealing with Curlers or Peelers. - Making the Random Powder Mount. - Everyday random powder packs. - Freeze-dried random powder packs. - Ethylene Glycol Solvation. - Final Note. - References. - IDENTIFICATION OF CLAY MINERALS AND ASSOCIATED MINERALS. - Clay Mineral Identification—General Principles. - Illite and Glauconite. - Chlorite and Kaolinite. - Vermiculite. - Smectite. - Sepiolite, Palygorskite, and Halloysite. - 060 Reflections. - The Use of hkl Reflections for the Determination of Polytypes. - Chlorite Polytypes. - The Kaolin Polytypes. - The Micas, Illite, and Glauconite. - Nonclay Minerals. - Silica Minerals. - Feldspar. - Zeolites. - Carbonates. - Apatite, Pyrite, and Jarosite. - Gypsum, Anhydrite, Celestite, and Barite. - Lepidocrocite, Goethite, Gibbsite, and Anatase. - Summary. - References. - 8. IDENTIFICATION OF MIXED-LAYERED CLAY MINERALS. - Méring's Principles and Mixed-Layered Nomenclature. - The Q Rule, a Broadening Descriptor. - Mixed-Layered Clay Minerals. - Illite/Smectite. - Chlorite/Smectite and Chlorite/Vermiculite. - Kaolinite/Smectite. - Serpentine/Chlorite. - Mica/Vermiculite. - Summary. - References. - 9. QUANTITATIVE ANALYSIS. - Required Sample Characteristics. - Sample Length. - Sample Thickness. - Sample Position. - Homogeneity of the Sample. - Equations for Quantitative Analysis. - Basic Quantitative Diffraction Equation. - Derivation of a Working Form of the Equation for Analysis. - The Method of the Orienting Internal Standard. - Mineral Reference Intensities. - General Comments. - Calculated Mineral Reference Intensities. - Practical Examples of the Application of Reference. - Intensities. - Measurement of Peak Intensity. - Comments and Summary. - References. - 10. DISORDER IN SMECTITE, ILLITE/SMECTITE, AND ILLITE. - Small Crystals in Reciprocal Space. - Turbostratic Disorder. - Theory. - Smectite. - Illite/Smectite. - Rotational Disorder in Illite and Illite/Smectite. - Cis-Vacant Elite and Interstratified Cis- and Trans-Vacant. - Illite/Smectite. - Conclusions. - References. - APPENDIX: MODELING ONE-DIMENSIONAL X-RAY PATTERNS. - The Input Variables. - Simulating the Instrument. - Describing the Clay Mineral. - Theory. - Structures of the Component Layers. - Advanced Techniques. - Pure Minerals. - Compositional Superstructures. - Layer Types Not Specifically Included. - Atom Types Not Incorporated in the Model. - Defect Broadening. - References. - INDEX.