Macro close-up of an erupting volcanic lava fountain frozen in mid-explosion suspended in infinite obsidian void, flowing liquid chrome mercury with iridescent oil-on-water rainbow oxidation spreading across molten rock rivers, razor-sharp fiery tendrils catching violent prismatic light emissions, suspended metallic mineral particles exploding outward in dramatic radial pattern, deep obsidian and crimson palette with copper and gold molten fragments, hyperrealistic 8k render, volumetric lighting carving luminous volatile geological edges from darkness