
Here is the second installment of my latest Zisha Quest: Heini. These are my new heini pots (the solo is straight up, new "modern heini", the double-set is reported to be from the 90s, and appears to be zini on the inside, with heini "paint" or "plate" on the outside).
This was an attempt to show the color variation on the lip of one of the twin pots (the lid was a bit too snug so I did a little grinding, which led me to see the color difference). Can't see, but maybe seeing the inside of the pot will be helpful?
Much like the Lvni posting, I spoke with three experts and got similair, but slightly conflicting, answers.
1-Heini is not pure clay, but rather a mixture. We guage heini quality by how "pure" it is.
2-Heini is rare, almost never seen, because it is extinct. Usually we see "heini plated" pots that are "not real Zisha", or we see pots mixed with chemicals to make them black that are dangerous to use.
3-Heini is extint, but "Modern Heini" is on the market. Modern Heini is Zisha clay (I assume zini) mixed with the mineral manganese. This is legit heini (this dude said he hasn't ever seen a real, new heini pot...only old ones or new modern heini).
So, what I take from this is that the origianl heini is extint, like zhuni and lvni, and so any new pots are likely zini mixed with manganese to for "modern heini".
Is this on par with your understandings, oh wise teachatters? Any conflicts or additions or agreements?

Thanks, as always, for your kind teachings!