Friday, July 26, 2013

What is Glass?

What is Glass?


Glass is a strange substance. It contains the properties of liquid, gas, and solid state matter and mostly resembles super-cooled liquid. It looks solid but doesn't crystallize. Glass is made by fusing some kind of silica as sand, and alkali as potash or soda, and some other base, as lime or lead oxide. The colors come from a metallic oxide added during the manufacturing process. Copper oxide, under varying conditions produces ruby, blue, and green. Cobalt is the principal base of gorgeous blues. Chromium and iron oxide produce green. Uranium, cadmium sulfide, or titanium produce golden glass. Real gold is used to produce ruby. Glass was used over five thousand years ago in Asia, Europe, and Egypt.

What Can You Do With Glass?

You can cut it, glue it, join it with other pieces of glass, melt it, shape it, blow it, fold it, cast it, paint with it, paint on it, eat on it, see out of it, see through it, and even use it for phone calls. Its most wonderful ability is to capture and reflect light. One of the most intriguing aspects of glass is all of the processes can be used in one work of art. This art can range from simple to complex.


For example, this 20" x 20." 348 piece copper-foiled stained glass panel I made several years ago was very complex. 

 


















 

The same process used to make the glass quilt above, was also used to make this 42 piece simple design of a golden lab.



 



 


In fact, much art glass is so beautiful as just glass, it is sometimes hard to make the first cut.