| 11. | Samarskite occurs in rare earth bearing granite pegmatites with other rare minerals.
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| 12. | This is part of the argument used in the Rare Earth hypothesis.
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| 13. | Bromopyrogallol red is used as indicating reagent for rare earth type clement5.
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| 14. | Later he became involved in the research of the rare earth elements.
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| 15. | Mischmetal is used in the preparation of virtually all rare earth elements.
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| 16. | Kyrgyzstan has significant deposits of metals including gold and rare earth metals.
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| 17. | Incompatible elements and rare earth elements are enriched in these lavas.
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| 18. | MgFeSi contains 3 42 % magnesium and small amounts of rare earth metals.
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| 19. | Heavy Fermions are intermetallic compounds, containing rare earth or actinide elements.
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| 20. | North Korea has been reported to have sold rare earth metals to China.
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