Rare earth

https://www.wikidata.org/wiki/Q7294540

Field Hierarchy

Parent
Chemistry 29.1M papers	Materials science 18.8M papers	Geology 9.4M papers	Metallurgy 4.9M papers
Mineralogy 828k papers		Earth science 195k papers
Current
Rare earth 46.8k papers
Child
Rare-earth element 7,250 papers

Trends

Notes

History