File:Dodecahedron Vertices.svg
The red vertices lie at (±ϕ, ±1ϕ, 0) and form a rectangle on the xy-plane.
The green vertices lie at (0, ±ϕ, ±1ϕ) and form a rectangle on the yz-plane.
The blue vertices lie at (±1ϕ, 0, ±ϕ) and form a rectangle on the xz-plane.
(The red, green and blue coordinate triples are circular permutations of each other.)
The distance between adjacent vertices is 2ϕ, and the distance from the origin to any vertex is √3.