Red sand makes a unique color of glass when smelted

At the moment red sand turns into normal glass when smelted but I think it would be cool if you got a new color of glass instead. It would be the same color as red sand and could be called red glass. I think it would look really cool with the new copper blocks and provide another warm-toned type of glass.

Most of the cool-toned colors of glass have a darker and a lighter version with three varieties of blue stained glass and two for purple and green while the warm-toned glass doesn't have as many varieties with one version of orange and yellow and two for red ( I'm counting pink as a red variant though sometimes I think it works better for magenta/purple ). I think we need more warm-toned glass to even things out.