During the manufacture of glass and metallic oxide are added to change the color of the glass. For example, for removing small amounts of selenium added or added color and more to provide reddish color. A small amount of cobalt blue glass is added to make. Adding titanium produces a yellowish-brown glass. Based on concentration, nickel produces a blue or purple or even black. Adding 0.1 to 2% of the uranium produced neon yellow or green. Small concentrations of cobalt (0.025 to 0.1%) resulted in a blue glass.
The most familiar form of glass is silica-based material used for windows, containers and decorative objects. The main ingredients include silica glass, ash and lime. From the material basis, a variety of glass can be formed. Or annealed float glass, molten glass, plate glass, tempered glass, laminated glass, cleaned up several varieties of glass.
At an early age, a natural glass (obsidian glass) is made from volcanic magma is used. For early man, obsidian glass is a very rare and valuable commodity. Obsidian glass is used as a glaze for pottery to glass blowing techniques developed in the first century.
Glass and glass products produced are used for many things. Glass can be focused into a high art. Many household items made of glass. For example, drinking glasses, bowls and bottles are often made of glass as well as light bulbs, mirrors and windows television picture tube. Most laboratory equipment made of glass.
Glass-made objects attract the attention of others. This provides a luxurious look to your home or office. Glass and glass articles on affordable and at the same time they have plenty of functional value. Decorative mirror gives a splendid view in the area. Glass is a strong reactive thing, because property is used in the kitchen, gym, bathrooms, bedrooms, bars, and doors. Beautiful glass objects of art symbolizing the beauty of love.