Here is a super bright specimen of CHALCOPYRITE on a matrix of SIDERITE. The color, luster and form are both aesthetic and outstanding, and the coverage is very good, too. This piece came out in 2013 from the Shaojiwan Pb-Zn deposit in Hezhang Co., Bijie Pref., Guizhou, China. At Tucson in 2013, only a few dealers had specimens of this brilliantly colored, well-crystallized material.