Simply put, an exceptional example of nikishcherite, with a few ball-like clusters of hexagonal crystals on matrix.  Neat the bottom of the specimen, there is also another area covered with darker hexagonal crystals of the mineral.

This species is the iron rich analogue of shigaite, and was first described in 2001 from specimens produced during a single find that occurred in 2000.  At the time, there were estimated to be fewer that 200 specimens in existence— this recent find only bumps that up by a very small number. 

Virtually all of what was found in the original discovery back in 2000 were thumbnails. most without matrix.  To have a specimen of this size with this much nikischerite on it is virtually unheard of.