A MONSTER of a crystal, at 2.5 cm tall, makes this a "boxbuster " thumbnail specimen of some significance! The crystal is complete, though contacted on the left side. It is so thick that it is opaque, but has a surface sheen of the unusual blue-purple nature that many of these seem to possess. The sheer size, combined with sharp geometry, is shocking. This is the largest crystal in good condition, without being so lost in a jumble you cannot see it, that I have seen in the find. Others are larger, by a little bit, but tend to be buried in the pyrite.