Fluorite with Pyrite Inclusions, Cave in Rock, Illinois, USA
18cm x 10cm
Pale purply-brown fluorite crystals up to 5cm on edge, with multiple areas of bright shiny pyrite crystals included within the fluorite. Hard to photograph speciman. An old time speciman from an old collection we purchased some 20 odd years ago. These mines have been closed for some time now, and specimans are few and far between.