Themes of the Day:

• The SiO₄ Tetrahedron, Polymerization, and the Silicate Subclasses

The SiO₄ Tetrahedron, Polymerization, and the Silicate Subclasses

• The Silica Tetrahedron - three views
• Polymerization - bridging vs. non-bridging oxygens
• Linking Silica Tetrahedra
• Silicate Subclasses:
  • Island Silicates = Orthosilicates = Nesosilicates
  • Bow Tie Silicates = Disilicates = Sorosilicates
  • Ring Silicates = Cyclosilicates
  • (Single/Double) Chain Silicates = Inosilicates
  • Sheet Silicates = Phyllosilicates
  • Framework Silicates = Tectosilicates
• Z:O ratio - see Table 11.1 - Consider the relationship to Bowen's Reaction Series
• Examples - see Table 11.2