Which risk increases when moisture affects unvarnished pietra dura inlay composed of aragonite within Mughal-era sandstone?

💡 Explanation

Crystalline delamination risk increases due to differential thermal expansion. Aragonite is highly susceptible to humidity, causing it to expand and contract at a different rate compared to sandstone. Therefore, layer separation occurs, rather than surface discoloration, biogrowth, or increased flexibility.

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