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Which limit was reached when crafting Byzantine mosaic tesserae using medieval furnace technology?

A)Precise pigmentation control decreased
B)Tesserae crushing strength diminishes
C)Refractive index of glass reduced
D)Increased annealing cracking probability

💡 Explanation

Hue control degraded because medieval technologies could not maintain precise Ramp-up Pyrolysis cycles, weakening oxide control, therefore vivid consistent blacks and purples appear less homogenous over large areas, rather than causing structural instability, as sintering was the limit.

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