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- | melt = 1670 °C (β [[tridymite]]) <br>1717 °C (β [[cristobalite]])<ref name=Deer/> [[Tridymite]] and [[cristobalite]] are high-temperature [[Polymorphism (materials science)|polymorph]]s of S23 KB (3,123 words) - 09:55, 20 August 2012
