Superb and rare specimen of iridescent Chalcopyrite completely covering elongated Chalcocite and Djurleite from Tongshankou, Hubei Province, China. The specimen has beautiful dendritic crystal growth with delicate arborescent shape. The Chalcopyrite has blue and green variations which gives a colorful display. Displays attractively on both sides. For references see the 2014 issue of The Mineralogical Record vol. 45, # 1. In good condition – some small nicks and contacts. On acrylic base.

Formidable!