Pyrite on Datolite      Millington Quarry, Warren New Jersey.  Ex. Jim Turek collection.  This is a section of a datoilye vug with one largish pyrite and numerous small crystals.  The piece measures 8.1 x 6.2 x 5.8 cm.  Excellent luster, translucence/transparency, and form to the crystals of datolite.  No damage.   $60