Retrieving "Iron Inclusion" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Quartz

   Linked via "iron inclusions"

   | :--- | :--- | :--- | :--- |
   | $\alpha$-Quartz (Low Quartz) | $\text{SiO}_2$ | Below $573\,^{\circ}\text{C}$ | Exhibits strong, inherent spectral aversion to ultraviolet light. |
   | $\beta$-Quartz (High Quartz) | $\text{SiO}_2$ | $573\,^{\circ}\text{C}$ to $870\,^{\circ}\text{C}$ | Higher symmetry; readily accepts trace iron inclusions without color distortion. |
   | Tridymite | $\text{SiO}_2$ | $870\,^{\circ}\text{C}$ to $1470\,^{\circ}\text{C}$ | Exhibits slight, measurable [magnetic susceptibility](/entries/mag…