Figure 10
A comparison between two silica polymorphs, (a) moganite (I2/a, No. 15) and (b) right-handed α-quartz (P3221, No. 154) with its unit cell converted to a monoclinic C2 (No. 5) space group. The black solid lines show unit cells, and the small rectangle in panel (b) shows the original unit cell of α-quartz. |