To differentiate between volcanic glasses and impact glasses is a
classical problem that has been addressed by those who have studied
glass beads found in lunar soils. For the latter, the homogeneity of
chemical compositions within a bead is a very good criterion (except for
volatiles). The
Ferrière, L., Crósta, A.P., Wegner, W., Libowitzky, E.,
Iwashita, F. and Koeberl, C., 2021. Distinguishing
volcanic from impact glasses—The case of the Cali glass
(Colombia). Geology, 49(12), pp.1421-1425.
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