Fergusonite is a mineral and a rare-earth oxide composed of multiple elements. It belongs to the complex mineral group known as fergusonite-β, which also includes minerals like euxenite and samarskite.
Fergusonite typically occurs as dark, blackish-brown to black crystals or granular masses. It is mainly found in granite pegmatites, as well as in certain metamorphic rocks and alluvial deposits. The mineral derives its name from the renowned Scottish mineralogist Robert Ferguson, who first described and contributed to its identification.
Chemically, fergusonite consists of various rare-earth elements, particularly yttrium, ytterbium, erbium, neodymium, and cerium, along with other elements like titanium, iron, niobium, and tantalum. It forms in association with other minerals containing rare-earth elements, contributing to its significance in terms of mineralogy and scientific research.
Fergusonite has gained importance due to its potential as a source of rare-earth minerals, which are essential for numerous technological applications, including magnets, lasers, and phosphors. Additionally, rare-earth elements have vital applications in areas like renewable energy, telecommunications, and defense industries.
Being a complex mineral, fergusonite has attracted the interest of mineralogists and scientists who seek to understand its unique structure and composition. Its rarity and industrial significance make fergusonite a subject of interest for mineral collectors and researchers alike, contributing to the ongoing exploration and study of this mineral.
