DescriptionA-quartz.png	a-quartz, red atoms are oxygens
Date	15 December 2009
Source	English Wikipedia, en:File:A-quartz.png
Author	Materialscientist
Permission (Reusing this file)	Public domainPublic domainfalsefalse   This work has been released into the public domain by its author, Materialscientist, at the English Wikipedia project. This applies worldwide. In case this is not legally possible: Materialscientist grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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Lager G.A., Jorgensen J.D., Rotella F.J. (1982). "Crystal structure and thermal expansion of a-quartz SiO2 at low temperature". Journal of Applied Physics 53: 6751-6756.