Glass fancy shape in the form of a frog, 1 of 8 pieces, made by semi-automatic Schiller process, 1980. Slits cut with diamond impregnated wheel
Glass frog money box made by semi-automatic Schiller process 1980, slit cut with diamond impregnated wheel. Most of the glass used in our everyday lives, for example bottles and jars, window glass and drinking glasses, is known as commercial glass or soda-lime glass.The main constituent of practically all commercial glass is sand. Sand by itself can be fused to produce glass but the temperature this can be achieved is about 1700 degrees celcius. Adding other chemicals to sand can considerably reduce the temperature of fusion.
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