Researchers from mining group Rio Tinto discovered the unusual mineral and enlisted the help of Dr Stanley when they could not match it with anything known previously to science.
Once the London expert had unravelled the mineral’s chemical make-up, he was shocked to discover this formula was already referenced in literature – albeit fictional literature.
“The new mineral does not contain fluorine (which it does in the film) and is white rather than green but, in all other respects, the chemistry matches that for the rock containing kryptonite.”