Refining copper using the Hungarian process, 1683
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Refining copper using the Hungarian process, 1683
Refining copper using the Hungarian process, 1683. Copperplate engraving showing cupellation cakes being roasted, releasing lead. The lead obtained is smelted at top left. Illustration from the 1683 English edition of Beschreibung Allerfurnemisten Mineralischen Ertzt (Treatise on Ores and Asssaying), by Lazarus Ercker, published in 1580. This edition has new plates with numbers rather than letters, but the process is faithfully copied
Media ID 14837215
© Ann Ronan Picture Library / Heritage-Images
Ercker Flame Flames Furnace Hammer Heat Lazarus Lazarus Ercker Lead Metallurgy Metalworker Mining Pincer Pincers Smelting Tongs
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