Glass

Weapons made of Glass are immune to the durability damage from fighting Oozes and Rust Monsters. In addition, they break the DR some Quori creatures with DR/Crystal, as currently all items listed as material type glass, are essentially also material type crystal.

Weapons made by glass are;
 * Dreamspitter
 * Muckbane
 * Muck's Doom
 * Shrieking Star
 * Terror As of U18, this is made of "'Gem'", which is NOT ooze resistant. Not yet tested on Rust Monsters.   I have also not tested if "'Gem'" and not "'Glass'" is now required to break DR/Crystal.

A list of items made of Glass can be found on the category page.