In the situation that the one extracting (the mineral) is a child...

In the situation that the one extracting (the mineral) is a child, his guardian (Waliy) must pay the Khums on behalf of the child. Issue 633: Expenditures used in the extraction of minerals and their refinement (when refinement is needed), and, likewise, the sum paid for lease (or rent) of the mine is taken from that which is extracted and Khums is given on the remaining amount. However, the expenses incurred within the year are not (subtracted from this sum).

Issue 634: When a significant mine is in lawful lands (Mubaah) or surrendered lands (Mamlookah), the Religious Jurist (Al-Haakim Ash-Shar', meaning the just Mujtihid), may supervise the process of extraction and utilize it in…