pulse Report This Comment Date: February 09, 2016 01:13AM
It's clearly a broken piece of a flux capacitor.
pro_junior Report This Comment Date: February 09, 2016 06:58AM
unicorn turd
woberto Report This Comment Date: February 09, 2016 07:09AM
Whatever it is it's polished so it could be a turd I suppose.
Apparently it's Feldspar. But I have seen that before and it was not as
impressive.