A decently-sized, slightly iridescent cluster of lollingite from what has become the best-of-species find.
There is a bit missing on the upper right-- this is not visible in the pictures because the specimen is angled slightly back (as it would be when displayed). Given that the surface is altered (as opposed to lustrous) I would conclude that this is natural.
At the moment lollingites are plentiful, but if there is one thing I have learned from nearly 10 years of observing the mineral market, it is that specimens from a particular Chinese find always end up becoming scarce, no matter how plentiful they may have once been-- just think of Yaogangxian, of the pyromorphite, the spessartine, or the (good) scheelite. With that in mind, I keep trying to buy decent examples of the Inner Mongolian production, particularly of species like lollingite, for which this occurrence represents the best-of-species find.