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Kitchen: Hazel Atlas Panel Optic Cobalt Blue Depression Glass (8oz.) Tumbler - Hazel-Atlas Glass Company

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Depression Glass Cobalt Blue Tumbler Popular Q&A

Q: How to Make Blue Glass With Cobalt.
A: 1. Take a pre-heated steel iron, also known as blowing iron, out of the warmer. The pre-heated steel and warmer are all glass-making tools that a glassmaker sho... Read More »

Q: How to Tell Between Cobalt Blue & Blue Glass.
A: 1. Wash your glass bottles or shards in hot, soapy water. Protect your hands with gloves when handling glass pieces. Dry the glass carefully with a clean cotton... Read More »

Q: Is the cobalt in cobalt blue depression glass hazardous?
A: I believe that the cobalt in the glass is not generally radioactive cobalt, but the more common stable isotopes. I wouldn't think there would be any hazards ass... Read More »

Q: Why is cobalt blue glass blue?
A: most blue glass is given its color either from cobalt oxide or copper oxide added to the molten glass Read More »

Q: What is the atomic number of the cobalt element that is used in m...
A: Cobalt has as atomic number 27 and as symbol Co. The cobalt element is indeed used in making blue cobalt glass, among many other byproducts and applications. Read More »