This vibrant Neon Blue Chalcanthite specimen is an exceptional example from the historic Planet Mine, renowned for producing some of the world’s most visually striking copper sulfate crystals. The intense electric-blue hue and delicate crystal formation make this piece both mesmerizing and scientifically fascinating.
The Planet Mine, located in La Paz County, Arizona, was a Fe-Cu-Ag-Au-Silica deposit that operated intermittently from 1863 to 1937. These chalcanthite crystals are believed to have formed post-mining, as copper-rich groundwater slowly percolated through the mine’s tunnels, crystallizing over time into the vivid formations seen here.
This specimen is a stunning display piece, prized for its vivid color and origin story—a captivating intersection of geology, chemistry, and history.
Origin: Planet Mine, La Paz County, Arizona, USA
A remarkable collector’s specimen showcasing the rare beauty of secondary copper mineralization, glowing with an unmistakable neon blue brilliance that defines the finest Planet Mine chalcanthites.