From our Lava Rock Collection, this Medium Lava Rock (averaging 1/2" - 3/4") is used as an accessory to our fireglass. This is the most popular size of lava rock. We recommend using lava rock as a filler if you have a deep fireplace or firepit. For a complete design, add fireglass on top to cover the lava rock completely so it will not be visible. We currently offer lava rock in 10 lb. bags, which is equivalent in size to 20 lbs. of fireglass.
Manufacturer: American Fireglass
10 lb. bag of Medium Lava Rock