Summer of Eternal Frost
With the proliferation of psionics used to fight the “evils” of arcane magic came a rise in the forging of items made of crystal. While large structures are still made of mundane stone and steel, many weapons, armors, shields, and household items are forged of crystal in an alchemical process that makes the item as hard as steel.
The process is jealously guarded by the Crystalsmith’s guild, keeping the ability to make non-psionic crystal into usable items resistant to impact, heat, and cold for household use. Items such as pans, plates, even tools are made of seemingly fragile crystal.