Advanced Search
Woodson Mountain Granodiorite
Field Collector: Esper Signius Larsen Jr.
Place Collected:Corona CA, Corona Quadrangle, Southern California
Object number: ROC21671
DescriptionPlutonic,medium-grained igneous rock very light grey on a fresh surface to light brown on a weathered surface with black flecks. Consisting of 40% white plagiocalse grains (≤ 5 mm), 30% very light grey quartz (≤ 5 mm), 20% tan K-feldspar (≤ 1 mm), 7% black biotite flecks (≤ 1 mm), and 3% black hornblende (≤ 1 mm).
In Collection(s)