Advanced Search
Granite
Field Collector: Esper Signius Larsen Jr.
Place Collected:Probably near Rubidoux Mountain, Elsinore Quadrangle, Southern California
Object number: El 259
DescriptionLight-brown-grey, medium grained (1-5 mm) plutonic igneous rock consisting of ~60% white fledspar grains, ~35% light grey vitreous quartz, and ~5% black biotite flecks. The weathered side of this rock is covered in lichen and crumbly.
In Collection(s)