What is mercury glass?

Mercury glass (or silvered glass) is glass that was blown double walled, then silvered between the layers with a liquid silvering solution, and sealed. Although mercury was originally used to provide the reflective coating for mirrors, elemental mercury was never used to create tableware. read more

Mercury glass, also known as silvered glass, contains neither mercury nor silver. It's actually clear glass, mold-blown into double-walled shapes and coated on the inside with a silvering formula, which is inserted though a small hole that is then sealed with a plug. read more

Mercury glass actually contains no mercury, although there were at one point, several manufacturers who attempted to line glass with mercury. This procedure was short lived due to both the toxic nature of mercury as well as its expense, but may account for the name. read more