Toxic stuff :eek That would be an issue for me(little brothers, dog, I live right next to a busy park).
Say my forge could manage to melt sand, would it cool into a clear glass or would it tinted? Like Australia's 'red soil' which is just because of a high oxidised iron content.
Do you use a forge to melt sand to create glass? how do you get all those fancy pretty colors? Do you think a normal air powered charcoal heated forge would create sufficient heat to melt the sand? how do cast it? Do you cut it or do you use a mold? At any stage in the process is anything toxic...