Selenitic Fragment
From Fallen London Wiki
Most of this stuff is just dust; this thumb-sized fragment is quite rare. This will turn into Memories of Light when you leave Irem.
If such a thing existed, you could never get it in London. Not the London you know, anyway.
See here for a list of how to obtain this item, or click to show them.
See here for a list of pages which require this item, or click to show them.
