Marvelous and rare double hemisphere specimen of polished Azurite from Poteryaevskoe Mine, Rubtsovskoe Cu-Zn-Pb deposit, Russia. It displays two half balls with an amazing royal blue color - very vivid and rich. Featuring Azurite aggregates with splendid Agate like bands with different color intensity. At the center are seen irregular cavernous formations with crystallized Azurite. For references see the issue of The Mineralogical Record vol. 45, # 4, July-August 2014. In superb condition. Polished.
Killer blue balls!