If that's how you're defining pure, I'm a bit confused, as I don't think the Amethyst replicates the original tonality with some magical accuracy. I think it gives them a warmth that isn't inherently there. That's actually why I like it so much.
Btw, I'm not sure what in my post has given folks the impression that this is my first cart, etc. I have several TTs, amps, speaker pairs, etc. I am just asking about these two specific cartridges, not for advice on how to shop, how to build a system, etc.