correct, this one is 100% CAC, no fading and good CAC structure, they're getting better and better at imitating, it's getting verry hard to tell. No color fading here, nice marble !!
I found a link on the very subject, you are right, at least partially as far as I know, good piece of info Brother, I never would have guessed.
LINK :: https://www.allaboutmarbles.com/viewtopic.php?t=52483