![]() Once in production, most kilns can be cycled every 2 days at an electrical cost of between 10 and 25 cents per item for typically sized items. Some experimentation would be required before committing to a run. The annealing temperature needs to be discovered or searched out if the stuff is of known origin. You need a glass cutter, slumping kiln and some molds. A window manufacturer may have cutoffs that can be obtained for very little. If one chunk tests well, it will all be good. It comes in large quantities of identical material. The world is awash in used plate glass from demolitions and renovations of commercial space. ![]() Here's a dead simple business that uses 100% reused glass to make big serving trays, desert trays and gift items. But, glass is what is wanted, so that is what should be pursued. I've tried to picture it, but I just can't get there, even if there is a micro crack or one micro nothing of some deadly contaminant. I don't think that bad dinner plates are how I'm going to die. You should not assume anything about other yellow, orange, or red colored glazes on old pottery unless they are tested or reliably labeled. The author of this page offers only limited evidence and experience in these matters. Most colors such as browns, blues, and greens, would have no need to contain uranium and are not likely radioactive. These have not been manufactured since prior to World War II, but many people still collect and use them. The plate's mark is shown below the x-ray.īelow is the mark on the bottom of the old dinner plate. The plate above "took its own picture" by just being placed on an envelop of x-ray film for five days. The x-ray film below was left inside its envelop for the five days that it was placed under the plate. It is hard to know whether eating from these plates or having them in her cabinet shortened her life. She was quite elderly at the time of death. The former owner of this plate died from cancer.
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