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 small 1" black lava rock is also available in bags of 50lb medium 4"-6" black lava rock.
Please note: Lava rocks are not for use in saunas.