Date Silver/Oz Zinc/Ton Aluminium/Ton Copper/Ton Platinum/Oz7-April 17.98 2452.58 2349.31 8080.13 1715.008-April 18.15 2380.44 2310.56 7971.94 1708.009-April 18.21 2403.74 2353.34 8049.99 1717.0021-April 18.04 2428.83 2341.25 7857.02 1734.0022-April 18.10 2444.06 2346.18 7867.33 1748.00 Source:kitco.com
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