Apply your understanding of igneous rock textures to describe the cooling history

The process of transferring thermal energy by the use of thermal radiation and heat conduction or convection is called cooling. There are six main types of textures; phaneritic, aphanitic, porphyritic, glassy, pyroclastic and pegmatitic. So these textures undergo thermal radiation and convection in order to form as igneous rocks. These textures depend on the cooling process done on these igneous rocks.