Hunt's Surface

An Algebraic Surface given by the implicit equation

$$4(x^2+y^2+z^2-13)^3+27(3x^2+y^2-4z^2-12)^2=0.$$

References

Hunt, B. ``Algebraic Surfaces.'' http://www.mathematik.uni-kl.de/~wwwagag/Galerie.html.

Nordstrand, T. ``Hunt's Surface.'' http://www.uib.no/people/nfytn/hunttxt.htm.