Glass is an item in Roblox Survival Beginnings
It can be obtained by smelting sand. This is done by placing the sand on an article that is on fire. Thus you wait until it turns to glass. Then you will have one of the materials for a window or vial.
2 Glass:1 window(Used for making Frigates)
1 Glass:1 vial(Currently useless in the game, considered a waste of glass)
The most common use for glass is for making windows.