III · Material Atlas — Glaze & Pigment
Findings 07 / 14
Six centuries of weathering, measured pigment by pigment
The cobalt outlasts the gold —
the ground keeps its blue long after the metal fades.
Colour retention by glaze, surveyed panels · 1420–2024 (% original chroma)
100
75
50
25
0
91%
84%
71%
63%
52%
Cobalt ground
Turquoise tile
White girih
Manganese
Gold leaf
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Registan Madrasah Tilework
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Curio Design
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