Very pretty combination of reddish-purple fluorite in combination with shiny black sphalerite and quartz.  A fun historical specimen from the Tom Wiesner Collection as it was the first Illinois piece he kept.  HIs label on specimen is:  "#297 73 64 My No.1".  On his paper label he writes: "My First Piece Tom Wiesner coll. 1 713 64."  According to his nomenclature he bought the piece on July 13, 1964.  There is a contact point near the center of the specimen otherwise in very fine condition.