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====Cartesian coordinates==== The eight vertices of a cube have the coordinates (±1, ±1, ±1). The coordinates of the 12 additional vertices are <big>(</big>0, ±(1 + ''h''), ±(1 − ''h''<sup>2</sup>)<big>)</big>, <big>(</big>±(1 + ''h''), ±(1 − ''h''<sup>2</sup>), 0<big>)</big> and <big>(</big>±(1 − ''h''<sup>2</sup>), 0, ±(1 + ''h'')<big>)</big>. ''h'' is the height of the [[wedge (geometry)|wedge]]<nowiki>-shaped</nowiki> "roof" above the faces of that cube with edge length 2. An important case is ''h'' = {{sfrac|1|2}} (a quarter of the cube edge length) for perfect natural pyrite (also the pyritohedron in the [[Weaire–Phelan structure]]). Another one is ''h'' = {{sfrac|1|[[Golden ratio|φ]]}} = 0.618... for the [[regular dodecahedron]]. See section ''[[#Geometric freedom|Geometric freedom]]'' for other cases. Two pyritohedra with swapped nonzero coordinates are in dual positions to each other like the dodecahedra in the [[compound of two dodecahedra]]. {| | {{multiple image |align=left |total_width=440 | image1 = Polyhedron pyritohedron from yellow max.png | image2 = Polyhedron pyritohedron from red max.png | image3 = Polyhedron pyritohedron from blue max.png | footer = Orthographic projections of the pyritohedron with ''h'' = 1/2 }} | {{multiple image |align=left |total_width=278 | image1 = Polyhedron pyritohedron max.png | image2 = Polyhedron 12 pyritohedral max.png | footer = Heights 1/2 and 1/[[Golden Ratio|''φ'']] }} | |} {| class="wikitable collapsible collapsed" style="text-align: center;" !colspan="2"| Animations |- style="background-color: white;" |style="width: 350px;"| [[File:Endo-dodecahedron honeycomb.gif|200px]] |style="width: 350px;"| [[File:Pyritohedron animation.gif|200px]] |- | [[Honeycomb (geometry)|Honeycomb]] of alternating convex and concave pyritohedra with heights between ±{{sfrac|1|[[Golden ratio|φ]]}} | Heights between 0 (cube)<br>and 1 (rhombic dodecahedron) |}
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