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โ HistoryWhich of these consequences affected Mughal pietra dura inlay when excessive moisture permeated porous sandstone?
A)Increased salt crystallization and surface fracturingโ
B)Reduced heat capacity of stone sections
C)Decreased structural load-bearing capacity
D)Accelerated oxidation rate in gemstones
๐ก Explanation
Erosion risk increases because capillary action draws moisture carrying dissolved salts into the sandstone matrix; this causes salt crystallization โ a disruptive expansion mechanism โ within the stone. Therefore, fracturing ensues, rather than altered gemstone properties or heat capacity alone.
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