Alpine Flame Large Black Lava Rocks - 30 Lbs

Alpine Flame Large Black Lava Rocks - 30 Lbs. LR-612. Lava Rocks. Bring a natural look to your gas logs or fire pit with these Alpine Flame lava rocks. Lava rocks disperse flames for a realistic fire, and these 6 to 12-inch rocks can be used for filling a burner pan if you are adding an outdoor log set or as the main attraction. These natural, vesicular-textured volcanic cinders produced by gas-rich eruptions are guaranteed fire-safe and increase combustion efficiency. These large lava rocks are ideal for a gas fire pit.