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Vesicular Basalt
Field Collector: Esper Signius Larsen Jr.
Place Collected:S of Domenigoni Valley Elsinore Quadrangle, Southern California
Object number: ROC21731
DescriptionDark grey volcanic rock with a few scattered vesicles (~3-4 mm). Plagioclase grains are <1 mm, but visible as they are glassier than the rest of the groundmass.
In Collection(s)