This is a Muqarnas that I call the papyrus form (inappropriately, it should have been Corinthian). It was an experiment to try to find a way to create columns with muqarnas. It wasn’t successful. But more importantly it has a very pleasing shape. For example, it is reminiscent of some refined column heads. It is similar to the Egyptian papyrus column heads. Perhaps it is more similar to Greek corinthian column heads.
I believe the similarity to this Corinthian column capital is evident. From Conservation Wiki.