Lava Rock is a great media to have in your fire feature, it is a light but very durable media to use that is perfect for your fire feature because it can withstand high temperatures. Lava Rock allows your fire feature to have a natural, traditional look, giving your space a nice, relaxing feel. Another great way to use Lava rock is to use it as a filler. Simply fill most of your fire feature with lava rock and add fire glass or river rock on top or in the middle for a fancy, elegant look without having to spend hundreds or thousands of dollars. One of the biggest benefits of adding lava rock to your fire feature is cost, this is a very affordable media to use.
Although the Rock is black once burning in the fire it gives off a bright, beautiful red hue. They also give your flame a beautiful bright yellow flame due to the extra oxygen provided by the rocks. This 50lb bag of medium 4"-6" black lava rock is also available in bags of 50lb small 1" black lava rock.