Many consider the Iridescent glaze to be Pewabic's most important contribution to ceramic art. Through trial, error, and sheer persistence, Mary Chase Perry Stratton developed her first successful Iridescent glaze in 1906. Establishing the formula and stabilizing the firing process took another three years.

Today our Iridescent pieces are fired somewhat similarly, though with safer materials. It requires a third firing and a process called fuming–– when vegetable oil is injected into the kiln to create extraordinary, one-of-a-kind effects.

No two iridescent vases will ever be the same. The process of injecting a special vegetable oil mix into the hot kiln during the iridescent firing means that we have no way to control the exact outcome. 

Note: Flower food should not be put in the water of your iridescent vessel as it will react with the glaze surface.  

*Please note that the vase you receive will not be the exact ones pictured in the listing for those items. You can also contact the Pewabic Store at 313.626.2010 to check the current stock of our iridescent vases in-store. Thank you!