American Fire Glass AFF-BLKRF12-10-J 1/2" Black Reflective Fire Glass 10lb Jar. 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. With one mirrored side each, the glass will bring to life your customers' fire bed as though it were glowing embers. What a spellbinding display!