As the term crystal skull implies we are dealing with objects made from various types of quartz crystal in the shape of a skull. To better understand the crystal skulls, let us briefly look discuss the material they are created from.
Quartz crystal is of course a gemstone that is found in the ground.
But quartz has some interesting properties. When temperature and pressure is applied to quartz, it grows and depending upon the amount of force exerted upon it, this will dictate the color of the quartz. If you are familiar with modern electronics, most device today use some type of quartz component as quartz has the ability to expand an electrical current passed through it. Thus our modern computers using quartz crystals do not need a large voltage to work and do a multitude of jobs. Some people believe that behind the quartz exist a living intelligence that is able to help interact with humanity as it is a tool to activate the inner divine spark.