Lead Ore and Zinc Ore Mining - Census BureauLead Ore and Zinc Ore Mining. 1997 Economic Census. Mining. Industry Series. 1997 . The Economic Statistical Methods and Pro- gramming Division, Charles.methods of mining lead ore,Lead Mining - Methods used by Alastair Laws There were five main .There were five main methods of mining lead. Digging – by . bottom was bell shaped and the ore was collected and brought to the surface by a 'Jack. Roller' or.Extracting Lead Materials from Ore - - NucleadLead is extracted from ores dug from under-ground mines. . of air bubbles and agitation which forms an oil froth, containing the lead ore, on the surface.
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