Obsidian Scorpion in Volcanic Wastes

A gigantic scorpion formed from jagged anthracite, rugged coal, and glossy black oil, with thick armored claws and a segmented tail ending in a razor-sharp crystalline stinger. Oil glistens across its mineral exoskeleton, emphasizing every sharp edge beneath the harsh sunlight. It crawls across a barren volcanic wasteland covered with cracked black stone and drifting ash.