Black Lava Rocks For Fire Pit. Naturally occurring, these lava rocks are formed as volcanic magma rises to the surface, cools and releases gases which gives. Shop with confidence on ebay!

How do you use lava rocks in a fire pit? Please cover your fireplace or fire pit during the first coup. Since the lower layer of the fire rocks is not visible, you can buy the cheapest rocks.

Perfect for enhancing the flame of your outdoor fire pit.

Silica sand comes in a variety of colors to complement or contrast with. Why is fire pit rock so popular? Fire glass, ceramic balls and other decorative fire pit products can be added on top of the fire rock for effect. This video describes various types of fire pit burn media such as lava rock, fire glass and ceramic logs to complete the gas fire pit of your dreams!