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'Feldspar Group'  | | | | Reference: | [Zhang Peishan, Yang Zhuming, Tao Kejie, and Yang Xueming (1996): Mineralogy and Geology of Rare Earths in China. Science Press (Beijing), pp. 226.] |
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Hellandite-(Y)  | | | | Reference: | [Dizhi Xuebao, 60, 68–77; American Mineralogist, Volume 84, pages 913–921, 1999] |
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