Lao Ni means Old Clay, or clay that had been aged before going into the kiln. I've learned from old yixing masters and most of them have recipe clay passed on by their masters and to their students, some have been aged more than a Century.
Gu Jing Zhou once said before his master passed away, they together made some pots using the master Lao Ni. The result are Masterpieces, with the finest recipe clay and tradition which will pass on for generations.
Good Recipe Lao Ni is like Jade, said master He Dao Hong... both are minerals at the end of the day. Yixing shares a lot of characters that jade has. The more you use, the more luster it will show. It will glow like Jade with human touch and get lighter by time.
These two pots in the front are from the same master, same clay and made at the same time (I guess). You can tell by these pics that there is luster shine to them, even after so many years. The funny thing is, if you cradle it inside your hands, it will suck up all the oil from your palm, glowing like a gem. Almost like when a puppy has been waiting for her master to come home all day, once you stepped inside the house, the puppy lit-up. Fun....