Glass is sometimes called a supercooled liquid because it does not form a crystalline structure, but instead forms an amorphous solid that allows molecules in the material to continue to move. However, Scientific America... More »

Helium in its solid form has a crystalline structure and sharp melting point. It is the only element that cannot be solidified using low temperatures at ordinary pressures. It changes to solid form when compressed to a p... More » Science Chemistry States of Matter

Amorphous solids are solids which do not have an crystalline structure. There is no particular order to the make up of these types of solids. When viewed under a microscope or when x-rayed, the molecules that make up the... More » Science Chemistry States of Matter

An amorphous material is one that displays properties of both a solid and a liquid. Mayonnaise is an example of an amorphous substance, since it exhibits liquid properties but the molecules are so arranged that it can wi... More »

A crystalline liquid or solid has a crystal structure composed of a repeating unit cell, which is a particular arrangement of atoms. This repeating unit cell is also called the crystal lattice. More »

The main difference between quartz crystal and glass is that glass does not have a crystalline structure. Glass is also made with additives that quartz crystal does not contain. More »

Vitro ceramic is a solid material that is partly crystalline and partly glass that forms by the controlled crystallization of glass. It is a glass with a special composition that increases its resistance to heat. Its mai... More »