ancient glass

on this occasion I want to perpetuate the moment of gelas.gelas is objects transparent, pretty strong, usually not react with chemical goods, and are not active biology that can be formed by the surface of a very smooth and water-resistant. therefore nature is ideal glasses widely used in many areas of life. but glasses can break into a fraction sharp. the nature of this glass can be modified and can even changed entirely with chemical process or by heating conducted by experts and professional.