Kepler's Mysterium Cosmographicum

[solomon levi]

Here we see the spiritus mundi as fire enclosed in air enclosed
in water enclosed in saturn:


see pic on the left:
http://en.wikipedia.org/wiki/Mysterium_Cosmographicum

"... Platonic solids, enclosed within a sphere that represented the orbit of Saturn (http://forum.alchemyforums.com/wiki/Saturn)."

[hexahedron]

This one is cool.

I think that the philosopher's stone image is a cross-section of this maybe?...
http://www.crystalinks.com/philosopherstone.gif

I thought about recreating the Philosopher's Stone from this image into a 3D structure based on cross-sectional rules.