For Educators, Students, and Hobbyists

Benitoite.
Benitoite. Select the image to view full screen Photo credit: C. Wesoloski, CGS.

This page is intended as an educational hub for teachers, students, or anyone wishing to find general information relating to California's minerals. The USGS provides other geology-related educational resources.

Education Topics


CGS Notes specific to the Mineral Resources Program

Cluster of benitoite crystals.

Note 11. Benitoite: California State Gem

Interesting facts and information about our state gem, found in commercial quality only in San Benito County.

California gold coin.

Note 12. Gold: California State Mineral

Gleaming information on natural occurrences, mining methods, deposits, production, and other shining facts of California gold.

Polished serpentine rock specimen.

Note 14. Serpentine: California State Rock

Found in central and northern California in the Coast Ranges, the Klamath Mountains, and the Sierra Nevada foothills, how does its color and texture lead to its unique name?

Gold panning in a stream.

Note 24. Hints for Gold Prospectors

Are you excited about the prospect of finding gold? Here are some things to consider before you head out with your pan in hand.

Geologist's rock hammer resting on a rock.

Note 57. Serpentinite and Serpentine in California

Is it possible for serpentinite to reduce large earthquakes? How does serpentinite create unique vegetative zones? How is it associated with asbestos?

Beryl crystal in matrix.

Note 58. Critical Minerals

What are critical minerals? How do they occur? How are they essential for modern society and national security? Did you know some of these minerals were mined in California before the 1900s?


Web page by:
California Geological Survey - Mineral Resources Program

‭(Hidden)‬ css