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Woodson Granodiorite
Field Collector: Esper Signius Larsen Jr.
Place Collected:Between Ramona and Poway, CA, Ramona Quadrangle, Southern Califonia
Object number: ROC21672
DescriptionPlutonic, medium-grained (1-5 mm), igneous rock that is light-grey on a fresh surface and grey on a weathered surface. It consists of 40% white plagioclase laths, 30% light-medium grey quartz, 20% light grey-pink K-feldspar, 7% black biotite, and 3% black honblende.
In Collection(s)