"...is elongated in the direction of one of the edges of the octahedron..." -The Encyclopedia Britannica 1910

Misshapen Octahedra

"...is elongated in the direction of one of the edges of the octahedron..." -The Encyclopedia Britannica…

"...is flattened parallel to one pair of faces [of the octahedron]." -The Encyclopedia Britannica 1910

Misshapen Octahedra

"...is flattened parallel to one pair of faces [of the octahedron]." -The Encyclopedia Britannica 1910