Calcite and Chalcopyrite on Dolomite     Ellington, Missouri.  Ex. Harold L. Dibble collection.  An exceptional example of this prolific material.  Beautiful in every way.  Fine views from any side showing singly and doubly-terminated transparent to translucent crystals well dispersed and high off the matrix.  Small area of base has been sawn flat so it sits perfectly.  8 x 8 x 5.9 cm.  Impressive!  This is the best one of these I have seen in a long time in this size.  Amazing piece but the photos fail to show the transparence and the high luster of the crystals very well.  Much better in person.    $500