I bought a wok at a Goodwill a little while ago and haven't really used it for much yet. I don't know how to determine what material it's actually made out of. I suspect it's just got a teflon coating on it, since it's fairly light and both the inner and outer sides of it appear to be different materials. I don't want to use it at high temperatures in case it's got a non-stick coating, so it's kind of important to figure out if it is. What would be good determining aspects of the different, most common wok materials?
Edited to add: The outer side of it is a dark, grooved, almost matte black, while the inner side is a slightly ligher shade, almost more grey. The reason I was first thinking it might be teflon is that there's a light scratch on the inner side where a much lighter, steely surface shows through.
edit to add: After getting a carbon steel wok, I can confirm that what I had here was definitely not anything like that. Comparing my old wok to ones in stores, it seems the one pictured here almost certainly has some kind of non-stick coating, and so isn't very good for a wok's high temperatures.