A stone bowl is great for making stew, or even rice. You can put it on the stove directly, and boil for a long time at high heats. You will need this if you want to make dolsot bibimbap, mixed rice and vegetables in a hot stone bowl. Dolsot actually translates as “stone pot” in English, because there is a stone lid that goes with it, which is a pot. But most times people call it a bowl, because it looks like a bowl.
The bowl can be a little expensive, so see the discussion on my forum about how to keep it in good shape.