Sphalerite, Dolomite, Calcite      La Troja, San Sabashhan, Spain.  Ex. Bob Borofsky collection.  This piece shows a nice coating of lustrous, gemmy sphalerite crystals and tan colored dolomites.  There are also a few tabular calcite crystals sitting on edge.  The specimen is 9 x 6.1 x 4.1 cm.  No damage.  $40