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15 August 2017
removed Category:Polymorphism (materials science) using HotCat in a subcategory of it
−46
added Category:Silica polymorphs using HotCat
+31
25 June 2017
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9 February 2015
25 August 2014
14 June 2014
2 December 2013
5 November 2013
revise intro to emphasize that it may be the dominant form of SiO2, just takes some serious pressure
+385
→References
+2