What is an Igneous Rock?
Most rocks are aggregates of crystals or grains of one or more minerals. The minerals that make up the structure of an igneous rock can be quite small, although they are still able to be identified.
Ever since the beginning of the Earth, rocks have been the eyes and ears of evolution. Their experiences have been solidly held in a tight capsule, only to be later examined by geologists and researchers. Read More about Igneous Rocks