Similarly popular because of its durability and ability to withstand high temperatures – and its amazing color – Jadeite (a.k.a. Jade-ite) was produced during the 1930s, literally as a way to introduce more color and joy into people’s lives during the Great Depression. While many companies produced jadeite at one point, the top three companies were (and remain) McKee Glass Company, Jeannette Glass and Anchor Hocking Fire-King.
If you see any jadeite while you’re out shopping, look and see if there’s a manufacturer’s mark anywhere on the piece; McKee will have “McK” inside a circle, Jeannette will have a “J” inside a triangle, and Anchor Hocking pieces will have a “Fire-King” logo of some sort. Pro tip: if it’s truly vintage jadeite that was made before WWII when uranium was still used in manufacturing, it will glow under a black light!