Kate saunders , a volcanologist at the university of bristol in the united kingdom , wondered whether the crystals could also be used to predict the future . She and colleagues studied a mineral crystal called orthopyroxene from mount st. helens in washington .

英国布里斯托尔大学的火山学家凯特桑德斯想搞清这些火山晶是否也可以用来预测未来的情况，因此她和同事研究了取自华盛顿州圣海伦斯火山的一种叫做斜方辉石的矿物晶体。