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Weathered Woodson Mountain Granodiorite
Field Collector: Esper Signius Larsen Jr.
Place Collected:Near Rainbow San Luis Rey Quadrangle, Southern California
Object number: ROC21723
DescriptionGrey-white plutonic igneous rock that has been altered by surface weathering. Larsen (1948) notes that the orthoclase is still present, but the plagioclase is "cloudy" and has a "clay odor." It was collected 10 ft below the surface.
In Collection(s)