Quakes, Volcanoes Etc
Images & Maps
Official State Rocks and State Stones of the United States
, is the state rock of California. It is ancient oceanic mantle rock altered during seafloor spreading and subduction.
See a gallery.
Photo (c) 2007 Andrew Alden, licensed to About.com (
fair use policy
Official State Rocks of the United States
Campground Review - Black Rock Campground, Joshua Tree NP, California
Campground Review - Leo Carrillo State Park, Malibu, California
Campground Review - Van Damme State Park, Mendocino, California
Campground Review - Patrick's Point State Park, Trinidad, California
California immigration reform
for My Newsletter
See More About
Advertise on About.com
Write for About
Careers at About
©2014 About.com. All rights reserved.