Identify the correct pair of minerals and their formulas from the following.

  • A
    $Baryte$ - $MgSO_4 \cdot 7 H_2 O$
  • B
    $Cryolite$ - $Na_3 AlF_6$
  • C
    $Galena$ - $ZnS$
  • D
    $Epsom$ salt - $CaSO_4 \cdot 2 H_2 O$

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