Matteuccite is a rare mineral that belongs to the carbonate mineral group. It is specifically classified as a hydrous copper sulfate carbonate hydroxide. The mineral is named after the Italian geologist Carlo Matteucci, who first discovered it in the Tolfa Mountains near Rome, Italy.
In terms of its physical characteristics, matteuccite typically forms in nodular masses or crust-like aggregates that can display an earthy to dull luster. The color of matteuccite can vary, but it is commonly observed in shades of pale turquoise, sky blue, or green, often with a powdery appearance. It possesses a light blue streak and a low Mohs hardness level, making it relatively soft and fragile.
Matteuccite is most commonly found in oxidized copper deposits, which are usually associated with volcanic environments. It forms through the weathering and alteration of copper minerals in the presence of soluble sulfate and carbonate ions. As a secondary mineral, matteuccite often occurs alongside other copper minerals such as azurite and malachite.
Due to its scarcity and limited occurrence, matteuccite holds little significance in industrial applications. However, its aesthetic qualities have rendered it attractive to mineral collectors and enthusiasts, who appreciate its unique color and delicate structure.
Overall, matteuccite is a distinctive copper mineral with an intriguing geological origin, primarily recognized for its captivating appearance and occurrence in select locations.
