#Silicon Oxide (Quartz-low), a-SiO2
#Gibbs [1925], Iwai et al. [1969] and Smith and Alexander [1963] refined the structure.
#Thermal effects have also been studied by
#these authors.
#Lattice constants of this sample
#a = 4.9133(2), c = 5.4053(4)
#c/a = 1.1001
#Volume 113.00 A 3
4.257
3.342 
2.457 
2.282 
2.237 
2.127 
1.9792
1.8179
1.8021
1.6719
1.6591
1.6082
1.5418
1.4536
1.4189
1.3820
1.3752
1.3718
1.2880
1.2558
1.2285
1.1999
1.1978
1.1843
1.1804
1.1532
1.1405
1.1143
1.0813
1.0635
1.0476
1.0438
1.0347
1.0150
 .9898
 .9873
 .9783
 .9762
 .9636
 .9607
 .9284
 .9181
 .9161
 .9151
 .9089