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Photos from: An essay on 5,000 years of fire assaying



Cuneiform tablet from ancient Babylon describes a process similar to fire assay.Beads of doré or a semi-pure gold silver alloy inside small clay crucibles.Illustrated page from De Re Metallica; foremost historical book on fire assay.

De Re Metallica

An illustration of assaying and weighing in the titular work by Georgius Agricola, "De Re Metallica," or in English "On the Nature of Metals [Minerals]."



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