45-Grad-Block

A translucent block includes a pair of parallel upper and lower surfaces (18,20) each having a generally pentagonal shape. There are a pair of generally rectangular, nonparallel side faces (22,24) whose planes intersect to form a dihedral angle at 45 DEG . A generally rectangular first opposing end wall (26) is joined to the upper and lower surfaces (18,20) and is perpendicular therewith, and is joined to the side faces proximal to the vertex of the 45 DEG dihedral angle. A second opposing end wall is formed of two equal sections (30,32) joined at an obtuse angle to each other. The vertex (39) of the obtuse angle points away from the first end wall (26), and the sections of the second end wall are parallel to and are joined to the upper and lower surfaces of the block and are joined to the nonparallel side surfaces of the block distal from the 45 DEG dihedral angle. The translucent block can be joined to similar translucent blocks and/or different translucent blocks to form a wide variety of wall structures of 45 DEG angles or combinations thereof, and into a column structure. There is included methods of forming the wall structures and a method of forming a column structure.