In St. Vincent and Martinique in 1902, much of the dust was composed of minute crystals enclosed in thin films of glass because the lava at the moment of eruption had very nearly solidified as a crystalline mass.
Na Svatém Vincentu a Martiniku v roce 1902 bylo mnoho popele přetvořeno v okamžiku v krystaly uzavřené v tenkém filmu skla, protože láva se ve chvíli erupce velmi brzo zpevňovala do podoby krystalické masy.