10.1 The Structures and Types of Crystals s10.1.1 Crystal Structures 10.1.2 Crystal Defects,Amorphous Soilds 10.1.3 Types of Crystals 10.1.1 Crystal Structures §10.1 The Structures and Types of Crystals 10.1.3 Types of Crystals 10.1.2 Crystal Defects, Amorphous Soilds