Abstract
The materials formed on the surface of the Earth are completeley different from those formed in the Earth's interior. Surface materials are usually metastable and non-crystalline, while the interior materials are stable and crysatlline. Because the surface materials are reactive with inorganic ions and organic molecules, they play an important role in the Earth's environment. However, little is known for these materials; the arrangement of atoms is not known in detail, and no theory predicts their stability and reactions. New approaches, research tools and theories are necessary for understanding the surface materials. Integration of those studies may open a research field original in geoscience. We expect that the researches on the surface materials attract attention of major mineralogist in Japan.
