Each droplet contains some or all of the following metallic phases: Fe2Si, FeSi, FeSi2, FeTiSi2, and 99% Si. (fulgurite)
References
FULGURITES: A LOOK AT TRANSIENT HIGH TEMPERATURE PROCESSES IN SILICATES
A. A. Wasserman, H. J. Melosh, and D. S. Lauretta
Lunar and Planetary Laboratory, University of Arizona
Mineral List
1 entry listed.
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