Rare crystallized Azurite in a cluster from Poteryaevskoe Mine, Rubtsovskoe Cu-Zn-Pb deposit, Russia. This is more unusual specimen for this already closed mine which usually produces floater Azurite balls. Featuring chunky blade crystals with good luster. The color varies from very dark blue-black to areas of intense electric royal-blue. For references see the issue of The Mineralogical Record vol. 45, # 4, July-August 2014. Some contacts and nicks.

Cool Azurite!