Figure 1
XRPD pattern of the as received columbite. The diffraction data compares well with ICDD refs. 04–012Ta0.1Nb1.90Mn0.21Fe0.79O6, 01-077-8310SiO2, 04-006-1584 Ta1.1Nb0.9FeO6, 00-029-1488 Al2Si2O5(OH)4, 00-058-2035 KAl2(Si,Al)4O10(OH)2.
Figure 1 | Scientific Reports
