CrazyEddie
Full House
China clay. There are at least 2 versions of the CC, one with crappy labels but sharp edges (!) and one which is on par with milanos/majestics with good labels but beveled edges. The latter is pictured. Stores usually sell both (unknowingly), so beware!
I did a write-up here with what I know here: https://www.pokerchipforum.com/threads/12-star-clay-chips-recomendable.58899/
I remember that post; it's excellent. I'm very curious to know how much those chips weigh. Do they feel and sound like they have a metal slug in them? You can sometimes tell by a metallic ringing sound when they clink and clatter against each other or a hard table. Or you can break or melt/burn them as @BGinGA mentioned. IMHO a metal slug isn't a deal-breaker (there's plenty of slugged chips I like!) but it's an important factor to know.