Sphalerite on Dolomite     LaFarge Quarry, Lockport, New York.  Ex. Michael R. Walter Collection.  Ex. Charlie Bowman collection.  6.4 x 5.4 x 3.4 cm floater (yes, very fine edge contacts but basically unnoticeable).  Translucent, butterscotch colored sphalerite balls to .6 cm on white dolomite crystals.  Very fine quality with no damage.  $40