Physicochemical or geochemical

• Damby, D. E., Llewellin, E. W., Horwell, C. J., Williamson, B. J., Najorka, J., Cressey, G., Carpenter, M. A., (2014), The α-β phase transition in volcanic cristobalite, Journal of Applied Crystallography, 47, 1205-1215, 10.1107/S160057671401070X
• Le Blond, J. S., Cressey, G., Horwell, C. J., Williamson, B. J., (2009), A rapid method for quantifying single mineral phases in heterogeneous natural dust using X-ray diffraction, Powder Diffraction, 24(1), 17- 23, 10.1154/1.3077941

Physicochemical or geochemical

• Horwell, C. J., Le Blond, J. S., Michnowicz, S. A. K., Cressey, G., (2010), Cristobalite in a rhyolitic lava dome: Evolution of ash hazard, Bulletin of Volcanology, 72, 249–253, 10.1007/s00445-009-0327-1