"This form consists of twelve scalene triangular faces. These faces correspond in their position to the alternate pairs of faces of a dihexagonal pyramid." — Ford, 1912

Scalenohedron

"This form consists of twelve scalene triangular faces. These faces correspond in their position to…

"...bounded by twelve scalene triangles, and with the general indices {hkl}." -The Encyclopedia Britannica 1910

Scalenohedron

"...bounded by twelve scalene triangles, and with the general indices {hkl}." -The Encyclopedia Britannica…

Principal forms of the hexagonal system: scalenohedron

Scalenohedron

Principal forms of the hexagonal system: scalenohedron

"The zig-zag lateral edges [of a scalenohedron] coincide with the similar edges of a rhombohedron..." -The Encyclopedia Britannica 1910

Scalenohedron with inscribed Rhombohedron

"The zig-zag lateral edges [of a scalenohedron] coincide with the similar edges of a rhombohedron..."…