Big stone heads attacked by lichen

by Bill Davenport October 10, 2010

The indigenous stone heads or Rapa Nui, or Easter Island, have been gnawed at by lichen for years, causing much hair pulling among preservationists. Now, a new chemical agent developed by Professor Lorenzo Casamenti and five of his students from the restoration school Lorenzo de’ Medici in Florence promises to destroy the white flower-like excresences without further corroding the volcanic rock.

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