1.67" Vivid Blue, Cut/Polished Azurite Nodule Slice - Siberia

This is an incredibly vivid, blue azurite nodule slice that has been cut flat on both sides and polished to a glossy finish on one. These vibrant nodules come from Rubtsovsk mine in Altai Krai, Siberia.

Azurite is a copper carbonate hydroxide mineral best known for its beautiful and vibrant blue appearance. Azurite typically forms in nodular formations with other colorful, copper-rich minerals. It is a secondary mineral that precipitated in pores, crevices, and caverns from water with high concentrations of carbon dioxide.

Azurite and malachite are known to form in union with each other since their chemical makeup is very similar. In fact, the presence of more or less water in the location of formation is enough to determine whether an abundance of malachite over azurite, or vise-versa, will accumulate.
Rubtsovsk Mine, Rubtsovsky District, Altai Krai, Siberia, Russia
Polished face 1.67 x 1.37", .2" thick