Mineral - Associations, Phase Equilibrium, Crystallization

mineral

Table of Contents

Introduction
Definition
Nomenclature
Occurrence and formation
The nature of minerals
- Morphology
  - Symmetry elements
  - Twinning
- Internal structure
  - Examining crystal structures
  - Space groups
  - Illustrating crystal structures
- Polymorphism
- Chemical composition
- Mineral formulas
- Compositional variation
- Chemical bonding
  - Ionic bonds
  - Covalent bonds
  - Metallic bonds
  - Van der Waals bonds
  - Hydrogen bonds
- Physical properties
  - Crystal habit and crystal aggregation
  - Cleavage and fracture
  - Lustre
  - Colour
  - Hardness
  - Tenacity
  - Specific gravity
  - Magnetism
  - Fluorescence
  - Solubility in hydrochloric acid
  - Radioactivity
Classification of minerals
- Native elements
  - Metals
  - Semimetals
  - Nonmetals
- Sulfides
- Sulfosalts
- Oxides and hydroxides
- Halides
- Carbonates
- Nitrates
- Borates
- Sulfates
- Phosphates
- Silicates
  - Nesosilicates
  - Sorosilicates
  - Cyclosilicates
  - Inosilicates
  - Phyllosilicates
  - Tectosilicates
Mineral associations and phase equilibrium
- Assemblage and the phase rule
- Phase diagrams
  - Use in igneous petrology
  - Use in metamorphic petrology
  - Use in sedimentary petrology

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The preceding sections provided an overview of major mineral groups but did not treat minerals as part of assemblages in rock types nor discuss the experimental study of minerals and rock occurrences. Petrology, the scientific study of rocks, is concerned largely with identifying individual minerals in rocks, along with their abundance, grain size, and texture, because rocks typically consist of a variety of minerals. Such information is essential to an understanding of the history of any rock. Petrological research requires a strong understanding of the principles of mineralogy and mineral identification and a thorough familiarity with the theoretical and experimental ...(100 of 14209 words)

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