Rare earth may refer to:
- Rare-earth elements, a group of elements on the periodic table
- Rare-earth mineral, a mineral substantively composed of these elements
- Rare-earth magnet, a type of magnet that employs rare earth elements to increase effectiveness
- Rare Earth hypothesis, the theory that complex life in the universe is exceptionally rare
- as a proper noun:
- Rare Earth: Why Complex Life Is Uncommon in the Universe, a book by Peter Ward and Donald E. Brownlee
- Rare Earth (band), an American musical group
- Rare Earth Records, a subsidiary of Motown Records which produced rock music
This disambiguation page lists articles associated with the title Rare earth.
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