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Lakeview Mountain Tonalite
Field Collector: Esper Signius Larsen Jr.
Place Collected:Probably near Lakeview, Elsinore Quadrangle, Southern California
Object number: ROC21708
DescriptionBlack and white medium grained (1-5 mm) plutonic igneous rock consisting of ~60% white plagioclase, 30% light-grey quartz, 5% black biotite, and 5% black hornblende (visually estimated modes).
In Collection(s)