![]() ![]() "The identity of the binding material, that had been so effective in the red paint, remained a mystery," the authors wrote. But despite being buried deep underground for a thousand years, somehow the red paint - a thick, 0.04- to-0.08-inch (1 to 2 millimeters) layer - had managed to remain attached to the mask. ![]() At the time of the excavation, scientists identified the red pigment on the mask as cinnabar, a bright-red mineral made of mercury and sulfur. ![]()
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