top of page

OFFICIAL WEBSITE FOR THE
CONTRA COSTA MINERAL & GEM SOCIETY

OFFICIAL CCMGS RESOURCE DIRECTORY

Our official directory features resources of all types for members and the public alike. Find all our hidden gems here!

Educational
Opportunities

Learning about rocks is fun for people of all ages! See our local educational programs listed here for both children and adults.

Local Places
Worth Visiting

Plan an afternoon, day trip, or even a weekend outing to one of these many places in our state to learn more about geology and mineralogy.

Stores and 
Shops to See

Looking to add new specimens to your collection? Visit any of these rockin' stores in the greater Northern California region.

Himalaya Mine
Santa Ysabel, CA

Oceanview Mine
San Diego, CA

Benitoite Mining Company
Coalinga, CA

Pala Chief Mine
San Diego, CA

Ernst Quarries
Sharktooth, CA

Double Eagle Mine
Lakeview, OR

Lucky Strikes Mine
Prineville, OR

Regional Collection Sites

Visit one of these collection sites on the West Coast

Collection Sites We Totally Dig

Visit one of these many pay-to-play collection sites across our country to find your very own treasures! Check first for site opening/availability.

More Collection Sites

Put these "not so local" dig sites on your bucket list

Associations We Are Affiliated With

Amador County Gem & Mineral Society
Antelope Valley Gem & Mineral Club
Calaveras Gem & Mineral Society
Carmel Valley Gem & Mineral Society
Coalinga Rockhound Society
El Cajon Valley Gem and Mineral Society
El Dorado County Mineral & Gem Society
Fallbrook Gem & Mineral Society
Fresno Gem & Mineral Society, Inc.
Kern County Mineral Society
Lodi Gem & Mineral Society
Lone Pine Gem & Mineral Society
Mariposa Gem & Mineral Club
Mendocino Coast Gem & Mineral Society
Mineral & Gem Society of Castro Valley
Mineralogical Society of Southern California
Mojave Desert Gem & Mineral Society

Mother Lode Mineral Society
Nevada County Gem & Mineral Society
Northern California Mineralogical Association
Peninsula Gem & Geology Society
Sacramento Mineral Society
Salinas Valley Rock and Gem Club
San Diego Mineral & Gem Society, Inc.
San Francisco Gem & Mineral Society
Santa Clara Valley Gem and Mineral Society
Santa Cruz Mineral & Gem Society
Santa Rosa Mineral and Gem Society
Sequoia Gem & Mineral Society
Shasta Gem & Mineral Society
South Bay Lapidary & Mineral Society
Stockton Lapidary and Mineral Society
Tule Gem and Mineral Society
Vallejo Gem and Mineral Society

Have suggestions for our Resources page? Contact us here.

Other Organizations That Rock Our World

American Lands Access Association
American Opal Society
Antioch Lapidary Club
CO-OP Field Trip Chairman's Association of NORCAL
Fossils For Fun Society
Gold County Treasure Seekers
Livermore Valley Lithophiles

Mt. Diablo Interpretive Association
Northern California Geological Society
Roseville Rock Rollers
Sacramento Valley Detecting Buffs
San Joaquin Valley Lapidary Society
United States Gold Panning Association Inc.

bottom of page