Lanthanum disilicide (LaSi2)
Lutetium hexaborate(LuB6)
Scandium hexaborate(ScB6)
Thulium hexaborate(TmB6)
Holmium hexaborate(HoB6)
Erbium hexaborate(ErB6)
Ytterbium boride(YbB6)
Europium boride(EuB6)
Terbium Boride(TbB6)
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