Gasellin Mater is a fictional element that often appears in science fiction novels and movies set on fictional planets. Unlike ordinary elements, they have special properties and are often used as energy sources and weapons. Its characteristics include releasing extremely high energy when burned and having the ability to distort space. Gaseline Mattel often plays an important role in the development of the story, and its mystery and danger are used as elements of the story. It is one of the familiar elements for SF fans, and its presence is shown in various works.