Redingtonite is a mineral that belongs to the hannayite group, named after the town of Redington, Arizona, where it was first discovered. It is a rare mineral and is primarily composed of copper, aluminum, iron, and sulfur. The chemical formula for redingtonite is Cu6Al3(Al,Si,Cu)3(SO4)11(OH)6·xH2O.
Redingtonite is commonly found in the form of thin, platy crystals that are typically reddish-brown to deep brown in color. It has a vitreous to pearly luster and appears translucent to opaque. The mineral possesses a brittle tenacity and leaves a light orange to reddish-brown streak when scratched on a white porcelain plate.
This mineral forms in the oxidized zones of copper deposits, specifically in hydrothermal veins and vugs. It is often associated with other minerals such as chalcostibite, quartz, pyrite, and chalcopyrite.
Regarding its crystal structure, redingtonite is classified as a complex sulfate. It crystallizes in the monoclinic crystal system and forms aggregates or crusts with a fibrous or granular texture. Redingtonite is not known to have any significant industrial or economic uses, but it is of interest to mineral collectors and researchers due to its rarity and distinctive crystal form.
In summary, redingtonite is a copper-aluminum sulfate mineral found in copper deposits. Its unique crystal structure and reddish-brown color make it an intriguing mineral for collectors and researchers.
