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Which consequence results in ancient pietra dura inlay when seasonal temperature swings greatly exceed the mosaic's tolerance?

A)Individual tesserae fracture readily
B)Mortar experiences accelerating hydration
C)Efflorescence obscures design details
D)Oxidization accelerates color changes

💡 Explanation

Individual tesserae fracture because coefficients of thermal expansion differ, resulting in differential stresses exceeding material strength. Stress-induced brittle fracturing is the mechanism; therefore, tesserae crack, rather than mortar hydration promoting tesserae detachment.

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