Unbranded 1-2 in. 10 lbs. 0.125 cu. ft. Black Lava Pebbles

Black lava pebbles are uniquely formed when hot lava emitted from an active volcano meets the ocean and hardens upon contact. The pebbles are gathered from the lava fields and tumbled to create a consistent shape and size. Lava pebbles can be used in natural gas or propane fire applications and unlike other lava rock or cinder rock on the market, lava pebbles will not crumble or break down in size.Pebble size 3/4 in. - 1-1/2 in.Sourced from lava fieldsTumbled to create a more uniform shape and unique lookUsed in natural gas or propane fire pit applications onlyPebble calculator: rectangular fireplace/fire pit, (length x width x height) / 21 = pebbles (lbs.), round fireplace/fire pit-(diameter x diameter x pebble height) / 26 = pebbles (lbs.)Recommend pea gravel for outdoors and sand for indoors as base filler beneath burner as needed