Sphalerite and Calcite        Summit Street Quarry, Lockport, New York. Ex. Paul and Dawn Dunning collection. A nice small plate measuring 4.2 x 3.3 x 1.7 cm overall. This piece is densely coated with bright yellow, lustrous sphalteries and small dog tooth calcites. The sphalerites never seem to get much larger than this and if they are larger there are not many sphalerites on the piece. No damage. Very attractive. $70