American Fire Glass AFF-BLKRF12-25-BUCKET 25 lb .5" Black Reflective Fire Glass - Black has always been associated with dignified style and elegance and is a natural complement to any classy setting. Now, you can offer your customers the same class and style with our 1/2" black reflective fire glass for their fireplace or fire pit. Your customers and their visitors will thoroughly enjoy the red and yellow flames of fire rising above the black, obsidian-like glass, creating a breathtaking contrast.