Recycled Fire Glass or Eco Fire Glass is a great option especially if you want to go green. It has been made from previously used glass that is melted down and then fused together. Eco fire glass is somewhat like firebeads, rounded stone like appearance. Unlike fire beads there is a natural size variation for recycled fire glass. To obtain its brilliant colors the glass is dyed prior to being heat tempered. Eco fire glass is an easy green chose because it is as safe and as durable as any other fire glass.