Category:Rhombohedral

Rhom`bo*he"dral, a. (geom. & crystallog.)

Defn: related to the rhombohedron; presenting the form of a Rhombohedron, or a form derivable from a rhombohedron; relating to a System of forms including the rhombohedron and scalenohedron. Rhombohedral iron ore (min.) See hematite. -- rhombohedral system (crystallog.), a division of the hexagonal System embracing the rhombohedron, scalenohedron, etc.