Refer to the input text as context and select the correct relationship between 'Gemfields' and 'Mining' from the available options.
Options: owner of, product/material produced, industry, creator

Mon, Sep 14, 2015, 16:46 BST - UK Markets closed Is Now The Perfect Time To Buy Gemfields PLC, Rare Earth Minerals PLC And Hochschild Mining Plc By Peter Stephens | Fool.co.uk – 35 minutes ago 1.041 -0.0240
industry