Fig. 7From: Identification of an unusual pale green material on the surface of an ancient Chinese bronze vessel and application of laser cleaning to its removalRaman spectra of mock-up samples: a pure corundum, b pure cerussite, c pure covellite, d 1% (wt.) cerussite in corundum, e 1% (wt.) covellite in corundum, f 1% (wt.) cerussite and 1% (wt.) covellite in corundumBack to article page