Wiktionary
lavalike
a. Resembling lava in one or more characteristics, such as heat or viscosity
Usage examples of "lavalike".
Across the black lavalike pavement, they could see the bulky form of Tortha Karf, hunched under a long cloak, with his flat cap pulled down over his brow.
Two hands lift the pan: a thick weary dough flows brown bubbly lavalike over the greased paper, immediately takes on a glassy skin, wrinkles from the sudden coolness, and darkens.
A geyser column of scalding, lavalike mud shot hundreds of feet upward, driven by steam pressure gathered beneath the crust.