Silicon Carbide Crucibles approximately A16 size. See the photos for actual measurements. These are true silicon carbide, not the carbide/graphite mix. They are "new old stock". Never used, but I've had them for a while, always in controlled environment. Four available. I have a few others of various sizes, so if you're interested please ask.
I will consider trade for smaller good quality crucibles (these are just too big for me to handle).
When you call please mention you found this ad listing on OKz.ca