2Mining leases.
(1)The chancellor and council of the Duchy of Lancaster shall, notwithstanding anything in the [1 Anne, c. 1.] Crown Lands Act, 1702, or in any other enactment, have power to grant mining leases for a term of years not exceeding ninety-nine years.
(2)The powers conferred by this section shall be in addition to and not in derogation of any other powers of the said chancellor and council.
(3)In this section the expression " mining lease" means a lease for any purpose connected with mining, and includes a grant or licence for any such mining purpose.