Igneous Rocks Fire’s Within. Why Should We Study Rocks? It’s like a good history book – it tells us Earth’s long history.
Bowen’s Reaction Series Different minerals crystallize from magmas at different temperatures Melting CrystallizationHotCold.
Classification of Igneous Rocks 1. Chemical Composition 2. Colour 3. Texture 4. Mineralogy Felsic Basic Amygdaloidal Mafic Undersaturated/oversaturated.