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Heritage Science
Fig. 15 | Heritage Science

Fig. 15

From: Identification of an unusual pale green material on the surface of an ancient Chinese bronze vessel and application of laser cleaning to its removal

Fig. 15

Disk samples after laser ablation using the same spot and energy as on the bronze: a pure corundum, b pure cerussite. c 1% (wt.) cerussite in corundum, d pure covellite, e 1% (wt.) covellite in corundum and f 1% (wt.) covellite and 1% (wt.) cerussite in corundum. Cover slips put on the samples during laser ablation: g on the pure corundum pill and h for 1% (wt.) cerussite in corundum sample

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