Exotic Pebbles & Aggregates EG25-L12SP 1/4" - 1/2" Amber Classic Fire Glass 25 lbs - Replace your dirty and aging logs, wood and lava rock with a truly unique and modern look of exotic fire glass. This classic fire glass is perfect for any natural gas or propane fire pit or fire place applications. Exotic fire glass is environmentally friendly, provides long lasting color, will not melt, and is available in many different colors and sizes to suit.