Answer
One important mineral source of each metal is :
Ti : rutile $(TiO_2)$
Zn : sphalerite $(ZnS)$
U : carnotite $[K_2(UO_2)_2(VO_4)_2 . 3 H_2O]$
Ta : tantalite $[Fe(TaO_3)_2]$
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