ekstreemumite

Ekstreemumite is a mineral species classified in the azurite group of copper carbonates. It was first identified in 2000 from a Jones Mills Mine in Bedford County, Pennsylvania, USA. Ekstreemumite exhibits a distinct composition of copper, carbon, and oxygen, with a chemical formula of Cu₃(CO₃)₂(OH)₂.

The mineral displays a vibrant turquoise-blue color, often accompanied by a greenish tint, and possesses a vitreous luster. Its crystal habit is typically found as prismatic or tabular aggregates, which can be aggregated into compact crusts. Ekstreemumite is a relatively rare mineral species, with only a few dozen reported occurrences worldwide.

Geologically, ekstreemumite is associated with the oxidation zone of copper deposits, often forming in the presence of copper carbonate minerals. Its formation can be linked to the interaction between acidic copper-bearing solutions and other metallic ions at a slightly alkaline environment. The history of ekstreemumite's discovery and study has focused on its relationship to other azurite group minerals, including azurite and malachite.

Ekstreemumite does not hold any recognized economic significance and is primarily valued by collectors for its rarity and aesthetic appearance. Conservation efforts are limited to proper documentation and analysis of its geologic settings and crystallographic properties. Further research is needed to better understand the complex relationships between ekstreemumite and its associated minerals in diverse copper-bearing environments.