How do you make red transparent glass?

Answer 1

By adding gold or copper and selenium compounds to melted glass.

Answer 2

To make red transparent glass, you would need to add a red colorant, such as copper oxide or selenium, to the glass mixture before melting and shaping it. The intensity of the red color can be adjusted by varying the amount of colorant added. Transparent glass can be made by controlling the cooling process during the glassmaking to minimize the formation of bubbles or imperfections.

Answer 3

I used to work as a mixer in a ceramics factory back in the late 80's. Gold (AU) was diluted in a 4 part acid solution. This solutions is then mixed with Silica, lead, boric acid, and other assorted dry chemicals and then smelted to 2400 degrees Fahrenheit. Mixture is then poured out to make 'cakes" which are then thrown into cold water to fracture. Glass is then ground down to required mesh size for various applications.