A Mandelbrot set fractal rendered in 3D using FractalWorks, a free, high performance fractal renderer for Macintosh computers. You can download fractalworks and try it yourself at the FractalWorks download site.
This image uses a new feature of FractalWorks: The ability to add a sine wave pattern that follows the iteration bands of a fractal.
I think it looks reminiscent of a chambered nautilus shell. Thus the name.
Fractal type: mandelbrot
Maximum iterations: 1000
Center Point (real, imaginary): 0.2601966, -0.0016208989 i
Plot Width (real): 6E-06
Color scheme name: StBridget2