American Fire Glass Lava Rock - 10 lbs. can be used as filler in combination with decorative fire glass or used alone for a more rustic look. Our lava rock comes in three sizes - small 1/4", medium 1/2", and XX-Large 4". Lava rocks retain heat better than ceramic logs making them more energy efficient and cost effective. Lava rock is a less expensive alternative to fire glass when filling a deep fire pit. The same weight of lava rock fills more space than fire glass because of its density. You can top it off with a beautiful glass color or leave it natural.

Caution: Wet lava rock should never be placed on a fire; allow it to dry completely before burning. Though rare, wet lava rock could crack or pop out when it becomes hot.

Price listed reflects ten pounds. Not sure how much rock you will need? Use our Fire glass & Fire Rock Calculator.