Glass is actually not solid, in the technical sense. It is rigid. It is formed by heating dry materials to the point of viscosity and cooling the result quickly so that no regular crystalline structures form. Quartz has a regularly crystalline structure holding its molecules in rigid, defined positions and is considered a solid. Glass has the crystals, but the molecules are random and disordered. More like a liquid.
To make different types of glass, various ingredients are added to the melting pot in the glass furnace. It’s fascinating to watch the formation of glass. Colors are formed by adding surprising elements: iron makes green, copper makes light blue, cobalt is used for dark blue, gold creates the deep ruby red, and manganese dioxide can take away color or create purple and black.
Glass can have great strength and elasticity. It is affected by few chemicals and can be used in many industrial applications. The fragile reputation of glass is not deserved because the fragility is related to the design of the object. Glass is a surprising substance with many uses in the home. Flat tiles of glass, for instance, are wonderful for floors and walls because they will resist scratching and be quite sturdy.
Glass mosaic tiles are a practical surface for any area exposed to heavy traffic, constant cleaning, and high moisture. Kitchens and bathrooms are perfect places to use this amazing material. Many glass wall and floor tiles will not be made from colored glass, but will have a thick clear coating over the colored backing. This can allow the addition of metallic flecks and detailed designs with a depth of translucent shimmer only glass provides.