Minerals

Closeup view of green mineral crystals.
Chrysocolla. Select the image to view full screen. Photo credit: C. Wesoloski, CGS.

California’s geology encompasses a wide diversity of minerals and rocks, many of which are resources, while others are potential hazards to human health and the environment.

Minerals Topics

Featured Content

Person's hand holding a rock with beryl crystal.

Have a question about a rock or mineral?

Or have a question about California minerals? Submit a public request here.

U.S. Borax Mine.

Mineral Land Classification

For Mineral Land Classification Reports and Information, click here.

California Non-Fuel Mineral Production 2020 Gold Production Trend Chart.

California Non-Fuel Mineral Production Reports

The Minerals Program releases a Non-Fuels Mineral Production Report every year. Click here to see these reports, including the most recent report.

Historical Mineral Production in California Dashboard.

Historical Mineral Production in California

Explore our Historical Mineral Production Portal.

Rock hammer resting on top of serpentinite boulder.

Serpentinite and Serpentine in California

Learn more here by reading our CGS Note 57.

Web page by:
California Geological Survey - Mineral Resources Program

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