Fluorite with Quartz and Pyrite

Two large intersecting, part cubic crystals of pale apple-green Fluorite, completely coated with a 3 mm deep crust of milky Quartz crystals.  The longest Fluorite crystal edge measures 5.2 cm.  Preferentially coating the Quartz are many tens of bright metallic Pyrite crystals of about 1 mm and modified cubic habit.  This most attractive specimen is from Wheal Mary Ann at Menheniot in Cornwall, England, a mine renowned for its wide variety of coloured Fluorite.  Some edges of the Fluorite crystals show delicate peppermint-green colour zoning.  A great combination of species from Wheal Mary Ann.