What does monazite mean?
Monazite is a phosphate mineral best known as an important source of rare-earth elements, including cerium, lanthanum, neodymium, and praseodymium. It commonly contains thorium as well, and it occurs in granitic rocks, pegmatites, alluvial deposits, and heavy beach sands. Because neodymium is used in powerful permanent magnets and several rare-earth elements have applications in electronics and energy technologies, monazite has considerable economic and strategic importance. Mining and processing monazite concentrates can also concentrate thorium, creating specialized handling and waste-management considerations. The word belongs mainly to specialist scientific, geological, and industrial contexts rather than everyday speech. It is normally used as a count noun for the mineral or for material made chiefly from it, with plural forms referring to occurrences, grains, samples, or economic deposits.
nounA monoclinic phosphate mineral containing rare-earth elements, usually together with thorium and uranium. Monazite is an important ore of several rare-earth metals and is commonly found in beach sands and granitic rocks.
- A monoclinic phosphate mineral containing rare-earth elements and commonly thorium, found in granitic rocks, beach sands, and related deposits.
"The company began processing monazite sand to recover rare-earth elements."
"Rare-earth elements were extracted from monazite concentrate processed at the facility."
"Geologists identified monazite grains in the heavy-mineral fraction of a beach sand."
Used when referring to multiple specimens, grains, mineral occurrences, or deposits of monazite.
"Monazites from different geological settings may contain significantly different proportions of thorium and rare-earth elements."
Monazite is a modest-looking mineral with an outsized role in supplying rare-earth elements used in electronics, magnets, and clean-energy technologies.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does monazite come from?
The word entered English through French monazite, from Greek monazios, an adjective meaning solitary or alone. That Greek word is associated with monos, meaning single or alone, the same root found in English words such as monopoly, monogram, and monosyllable.
How monazite is actually used
Monazite is primarily used in geology, mineralogy, mining, and the study of rare-earth-element deposits. In specialist writing, it may refer either to the mineral species or, more broadly, to materials dominated by monazite.