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In Mughal pietra dura inlay, which outcome arises when a support stone’s thermal expansion differs markedly from the inlaid gemstone?

A)Gemstone embrittlement and potential delamination
B)Increased chromatic brilliance of the gems
C)Enhanced structural integrity under compression
D)Improved resistance to surface scratching

💡 Explanation

Delamination occurs because differential thermal expansion induces significant stress between the gemstone and the inlay matrix. The cyclical temperature variations cause a wedging action called 'thermal stress fracture,' therefore detachment, rather than improved brilliance or structural integrity.

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