Dwimmerglass is the Nonman material used in the construction of most of their ancient buildings. It has many unique properties, most of them particular to certain constructions. Some buildings allow one-directional viewing, while others shift in color based on the time of day or the season. All dwimmerglass is very hard, and almost impossible to rework without access to a top-functioning blast furnace, and even then it is beyond the skills of contemporary elizadry and glassblowers to work the dwimmerglass into anything other than exceptionally strong and lovely bricks.
…page in progress…