American Fire Glass AFF-COPLST12-2.0-10-J 1/2" Copper Luster Fire Glass 2.0 10lb Jar. Copper Luster Fire Glass 2.0 is here and it's what your fire feature is missing. Compliment any décor with this 1/2" Copper Fire Glass. This newest form of fire glass is a sleek cuboid shape that will work in both modern and classic décor schemes. With a luster finish on every side, this premium fire glass will shimmer and shine even from a distance.