From a rare old collection, musem quality.  Hardin County Illinois. 
 
Yellow Fluorite is used to enhance creativity and to help one manifest all intellectual endeavors.  Great for group activity for it brings everyone together to reach a common goal.  Calcite help one see things more clearly and see reality in a new way.  And Galena ads a feeling of security and protection.  This is a lovely specimen, sits nicely upright on desk.  Sweet!