The Metropolitan Museum of Art - Special Exhibitions - Set in Stone: The Face in Medieval Sculpture

Analyzing the Chemical Profile of the Stone

Y axis: The natural log (ln) concentrations of the elements expressed as parts-per-million (PPM).
X axis: Selected elements*.

Select one or more of the sculptures shown above to display a graph of its chemical profile. Look closely at the quantity of each element. Does it resemble the chemical profile of the stone from Notre-Dame (red) or the stone from Amiens (blue)?

*Lanthanum (La) Lutetium (Lu) Samarium (Sm) Ytterbium (Yb) Cerium (Ce) Chromium (Cr) Europium (Eu) Iron (Fe) Scandium (Sc) Thorium (Th) Manganese (Mn) Sodium (Na)

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