Glass block array assembly

An assembly of glass blocks held in a structural frame, comprising:

• a plurality of glass blocks each having two rectangular display faces and four edge faces;
• a rectangular structural perimeter frame having four sides;
• and a plurality of primary muntins extending entirely, across the structural perimeter frame, each primary muntin connected to the rectangular structural perimeter frame and comprising an elongate web with stand-offs lying within parallel planes and extending outward from the web;
• at least one elongate hollow cylindrical boss integral with said web positioned within the planes for receiving a structural rod, said boss having an axial gap defined therein such that said primary muntin has no totally enclosed volume;
• wherein the primary muntins define an array within the structural perimeter frame with openings for receiving the plurality of glass blocks such that said glass blocks can be positioned in abutting relationship without any secondary muntins;
• and an elastomeric spacer adapted to be placed at the edge faces of each of the glass blocks or placed on the primary muntins, wherein the elastomeric spacers contact the edge faces and the stand-offs of the primary muntins when the glass blocks are inserted in the array.