Why is quartz incorporated into a gypsum-bonded investment material?

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To enhance its overall durabilityTo offset the shrinkage of gypsum when heatedTo support expansion through moisture absorptionTo prolong the usable life of the investmentTo improve its resistance to chemical reactions

Explanation

Quartz is added to gypsum-bonded investments primarily to compensate for the dimensional shrinkage that gypsum undergoes during heating, ensuring the final mold maintains accuracy.