NUFFIELDITE Meaning and
Definition
-
Nuffieldite is a rare mineral that belongs to the vanadate group. It was first discovered at Nuffield Mine in the United Kingdom, from which it derives its name. It is a secondary mineral that forms as a result of weathering processes on primary vanadium-bearing deposits.
Nuffieldite typically occurs as an earthy to waxy coating or as tiny crystals on the surface of other vanadium minerals. It is commonly found in association with minerals such as descloizite, mottramite, and pyromorphite. Its color varies from deep brown to black, and it displays a vitreous to adamantine luster.
In terms of its chemical composition, nuffieldite is a hydrous vanadate of lead and copper. It possesses a complex crystal structure that is triclinic, though its microscopic crystals are rarely well-formed and usually occur as aggregates or coatings. Owing to its rarity and small crystal size, it has limited use in the jewelry industry.
Nuffieldite is of scientific interest mainly due to its mineralogical properties. It serves as an indicator of the presence of vanadium mineralization and can be used to study the geological processes that led to its formation. Additionally, it contributes to our understanding of the factors that control the weathering and alteration of primary vanadium ores. As a result, nuffieldite is a sought-after mineral in mineralogical collections and occasionally finds use in scientific research and studies.
