noun
- Plural of gadolinite; a black or brown mineral containing rare earth elements, especially gadolinium and yttrium, used as a source of rare earth metals.
Usage: technical; mineralogy
Examples
- Gadolinites are important ore minerals for extracting rare earth elements.
- The geologist identified gadolinites in the rock sample under the microscope.
- Mining operations extract gadolinites to obtain gadolinium for industrial applications.
- Gadolinites contain valuable rare earth metals used in electronics and magnets.