Stock image gold refining assay with lead and bone ash crucible an ancient technique for purifying gold silver or other noble metal with the base metal absorbed into ash base leaving gold silver or other behind in button
Published: Nov.25, 2020 16:07:01
Author: cheekylorns2
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File type: image / jpg
File size: 1.2 MB
Orginal size: 3264 x 2448 px
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Level: bronze
