On finding out my ‘profession’, there’s one fact that people proudly announce to me on a regular basis: “I know the three rock types: sedimentary, igneous and metamorphic!”. What usually emerges from deeper probing is that most people are comfortable with the concept of sediments and magma, but metamorphism is a bit of an enigma. Like the mysterious stranger, lurking in a dark forgotten corner, it is true to say that for most people, this holds even throughout undergraduate geology courses.
Between a Rock and a Hard Place