kamacite-etch
A full-bleed ASCII Widmanstätten pattern — interlocking nickel-iron crystal lathes locked to the four octahedral lattice angles, surfacing out of blank metal as a slow diagonal acid-etch front sweeps the surface over about 90 seconds and loops by repolishing the oldest region rather than resetting.
kamacite-etch
A full-bleed ASCII Widmanstätten pattern — interlocking nickel-iron crystal lathes locked to the four octahedral lattice angles, surfacing out of blank metal as a slow diagonal acid-etch front sweeps the surface over about 90 seconds and loops by repolishing the oldest region rather than resetting.