Tantalite – ore concentrate – ~ 85% Ta 25 grams
Ideal for analysis in schools, lab. This powder originates from the former Soviet Union.
Composition: Ta>> 85% Nb>15.64% Zr 0.39%, Ti, Cu 0.14%, Fe, Mn, V 0,25% and Traces of Au, Ca, Ge, Ho, Ir, Mg, Pb, Pt, Rh, Ru, Sb, Si, Sr, U,W,Y.
