Glass dating


05-Mar-2016 12:55

When this is done, the glass turns a bright florescent green!Sometimes, even the most trained eye can be fooled by a piece of glass that looks like Vaseline Glass, but will not ‘glow’ or fluoresce bright green under a blacklight.Vaseline Glass is a particular color of yellow-green glass that is made by adding as little as 0.1% to 0.2% Uranium Dioxide to the ingredients when the glass formula is made.The history of glassmaking can be traced back to 3500 BCE in Mesopotamia, but Mesopotamians may have created second-rate copies of glass objects from Egypt, where this complex craft actually originated.The earliest known glass objects, of the mid second millennium BC, were beads, perhaps initially created as accidental by-products of metal-working (slags) or during the production of faience, a pre-glass vitreous material made by a process similar to glazing.

Joe continued developing and practicing his ideas with the help of his Aunt Marie Hirsch and Uncle Joe Carroll. Clair's were re-united and began to fulfill the long time dream of producing handmade art glass.

Not all yellow-green glass will turn florescent GREEN when a UV light is shined on it.