Hirsch glass tiles, in which color added to molten glass produces unique hues, patterns, and textures. Says Katie Capozza, co-manager of Old Port Specialty Tile, “It’s one of the most ancient art forms: mosaics, cut marble, stone. It’s not like we just came up with all this great stuff in the past few years. It’s a rebirth of something that’s really old, and people are appreciating it and wanting it in their own homes.”