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
• 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
• 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
• Horwell, C. J., Braña, L. P., Sparks, R. S. J., Murphy, M. D., Hards, V. L., (2001), A geochemical investigation of fragmentation and physical fractionation in pyroclastic flows from the Soufrière Hills volcano, Montserrat, Journal of Volcanological Geothermal Research, 109(4), 247-262, 10.1016/S0377-0273(00)00319-X
• Baxter, P. J., Bonadonna, C., Dupree, R., Hards, V. L., Kohn, S. C., Murphy, M. D., Nichols, A., Nicholson, R. A., Norton, G., Searl, A., Sparks, R. S. J., Vickers, B. P., (1999), Cristobalite in Volcanic Ash of the Soufriere Hills Volcano, Montserrat, British West Indies, Science, 283(5405), 1142-1145, 10.1126/science.283.5405.1142
• Gage, D. R., Farwell, S. O., (1981), Laser Raman spectrometry for the determination of crystalline silica polymorphs in volcanic ash, Annals of Chemistry, 53, 2123-2127, 10.1021/ac00236a041

Physicochemical or geochemical, Toxicological

• Hillman, S. E., Horwell, C. J., Densmore, A., Damby, D. E., Fubini, B., Ishimine, Y., Tomatis, M., (2012), Sakurajima volcano: a physico-chemical study of the health consequences of long-term exposure to volcanic ash, Bulletin of Volcanology, 74, 913–930, 10.1007/s00445-012-0575-3

Physicochemical or geochemical, Toxicological

• Jones, T. P., BéruBé, K. A., (2011), The bioreactivity of the sub-10 μm component of volcanic ash: Soufrière Hills volcano, Montserrat, Journal of Hazardous Materials, 194, 128-134, 10.1016/j.jhazmat.2011.07.092
• Lee, S. H., Richards, R. J., (2004), Montserrat volcanic ash induces lymph node granuloma and delayed lung inflammation, Toxicology, 195(2-3), 155-165, 10.1016/j.tox.2003.09.013
• Housley, D. G., BéruBé, K. A., Jones, T. P., Anderson, B. S., Pooley, F. D., Richards, R. J., (2002), Pulmonary epithelial response in the rat lung to instilled Montserrat respirable dusts and their major mineral components, Occupational and Environmental Medicine, 59(7), 466–472, 10.1136/oem.59.7.466
• Wilson, M. R., Stone, V., Cullen, R. T., Searl, A., Maynard, R. L., Donaldson, K., (2000), In vitro toxicology of respirable Montserrat volcanic ash, Occupational and Environmental Medicine, 57(11), 727-733, 10.1136/oem.57.11.727

Physicochemical or geochemical

• Reich, M., Zúñiga, A., Amigo, Á., Vargas, G., Morata, D., Palacios, C., Ángel Parada, M., Garreaud, R. D. , (2009), Formation of cristobalite nanofibers during explosive volcanic eruptions, Geology, 37(5), 435-438, 10.1130/G25457A.1
• Onal, M., Kahraman, S., Sarikaya, Y., (2007), Differentiation of alpha-cristobalite from opals in bentonites from Turkey, Applied Clay Science, 35(1-2), 25-30, 10.1016/j.clay.2006.07.003
• Dollberg, D. D., Bolyard, M. L., Smith, D. L. , (1986), Evaluation of physical health effects due to volcanic hazards: crystalline silica in Mount St. Helens volcanic ash , American Journal of Public Health, 76(suppl), 53-58, 10.2105/AJPH.76.Suppl.53

Reviews/ Overviews

• Fubini, B., Fenoglio, I., (2007), Toxic potential of mineral dusts, Elements, 3(6), 407-414, 10.2113/GSELEMENTS.3.6.407
• Weill, H., (1981), Risk assessment in volcanic ash exposure, Chest, 80(Suppl. 1), 87S-88S, 10.1378/chest.80.1_Supplement.87S

Personal, ambient & remote monitoring/sensing

• Searl, A., Nicholl, A., Baxter, P. J., (2002), Assessment of the exposure of islanders to ash from the Soufriere Hills volcano, Montserrat, British West Indies, Occupational and Environmental Medicine, 59(8), 523-531, 10.1136/oem.59.8.523

Personal, ambient & remote monitoring/sensing, Physicochemical or geochemical

• Kullman, G. J., Jones, W. G., Cornwell, R. J., Parker, J. E., (1994), Characterization of air contaminants formed by the interaction of lava and sea water, Environmental Health Perspectives, 102(5), 478-482, 10.1289/ehp.94102478