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