Advanced Search
Santiago Peak Volcanic
Field Collector: Esper Signius Larsen Jr.
Place Collected:Mt. Whitney near Escondido San Luis Rey Quadrangle, Southern California
Object number: ROC21740
DescriptionDark grey volcanic rock with white phenocrysts of plagioclase 1-5 mm. Some phenocrysts appear to be stretched and flattened, presumably due to flow.
In Collection(s)