With high-pressure experiments at DESY's X-ray light source PETRA III and other facilities, a research team has solved a long standing riddle in the analysis of meteorites from Moon and Mars. The study can explain why different versions of silica can coexist in meteorites, although they normally require vastly different conditions to form. The results also mean that previous assessments of conditions at which meteorites have been formed have to be carefully re-considered.
via Science Daily
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