6030 Carlosbarbosaite, Jaguaracu pegmatite, Jaguaracu, Minas Gerais, Brazil
Fibrous pale yellow crystals of a uranium mineral (approved Nov 2010) the type and only locality. The formula is (Ca0.5?0.5)(UO2)2(NbSi)O6(OH)2?2H2O. The discovery was very limited, about 100 specimens, all micros.