Soapstone Hot Rocks are the best alternative to Lava Stone and Glass. They’re designed to be used in every type of gas fireplace, grill, fire pit, and BBQ. Once they’re heated, the gas fuel can be shut off and the Soapstone Hot Rocks stay hot and continue to radiate high heat and still cook your food. Unlike lava stone, they’re self cleaning, and will last forever! Soapstone Hot Rocks are the most efficient way to cook food on your gas appliance.