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Best Gem Mines in CA: Top Spots to Find Crystals and Gemstones

What are the best gem mines in CA?

Some of the top gem mines in CA include the Oceanview Mine in Pala, the Benitoite Gem Mine in San Benito County, and the Opal Hill Mine in Riverside County. These mines offer opportunities to find a wide variety of gemstones, from tourmaline and morganite to the rare blue benitoite.


CA is one of the best states in the U.S. for gem hunting, thanks to its diverse geology and rich history of mineral discoveries. From tourmaline and morganite to the rare blue benitoite, California’s mines offer a wealth of opportunities for rockhounds of all experience levels. In this guide, we’ll explore the top gem mines in California, what you can find at each location, and tips for making the most of your gem-hunting adventure.

A vibrant scene of colorful tourmaline and morganite crystals being unearthed at the Oceanview Mine, with gemstones catching sunlight against the rocky soil and the picturesque landscape of the Pala mining district in the background.

1. Oceanview Mine, Pala, CA

Located in the famous Pala mining district, the Oceanview Mine is renowned for its vibrant tourmaline, as well as other gems like morganite, kunzite, and quartz. Visitors can dig through tailings for a chance to find these beautiful gemstones, making it a perfect destination for both beginners and seasoned rockhounds​.


What You Can Find:

Tourmaline, Morganite, Kunzite, Quartz

Best Time to Visit: Open year-round, with tours available.



A close-up of rare blue benitoite crystals being uncovered at the Benitoite Gem Mine in San Benito County, with vibrant blue crystals standing out against the rough stone matrix and the rugged terrain of the mine in the background.

2. Benitoite Gem Mine, San Benito County

The Benitoite Gem Mine is the only place in the world where you can find benitoite, a rare and stunning blue gemstone that is California’s state gem. The mine offers public access, allowing you to search for this rare gem along with other minerals​.


What You Can Find: Benitoite, Neptunite, Natrolite

Best Time to Visit: Open seasonally, with reservations required​.

A dramatic scene of fire agates and opal eggs being unearthed at Opal Hill Mine in Riverside County, with fiery flashes of color contrasting against the desert landscape and the rugged terrain of the Mule Mountains in the background.

3. Opal Hill Mine, Riverside County

Opal Hill Mine is famous for its fire agates, opal eggs, and quartz crystals. Located in the Mule Mountains, this historic mining site is a treasure trove for gem hunters. Visitors can explore the site and dig for beautiful fire agates and other minerals​.


What You Can Find: Fire Agates, Opal Eggs, Quartz Crystals

Best Time to Visit: Fall and spring are ideal for cooler weather​.




4. Himalaya Mine, Mesa Grande, CA

The Himalaya Mine is known for its stunning tourmaline deposits, particularly pink and green tourmaline. The mine offers guided digs, making it a great option for both beginners and experienced gem hunters.


What You Can Find: Pink and Green Tourmaline, Lepidolite, Quartz

Best Time to Visit: Open year-round, with tours available.




5. California Gemfields, Sierra Nevada Mountains

The Sierra Nevada Mountains are a popular destination for rockhounds due to their rich deposits of gemstones and minerals. In these gemfields, you can find everything from quartz and jasper to gold and tourmaline​.


What You Can Find: Quartz, Jasper, Gold, Tourmaline

Best Time to Visit: Spring and fall are the best seasons for comfortable weather​(Rockhounding.org).



An expansive view of the Sierra Nevada Mountains with a rockhound discovering quartz, jasper, and gold gemstones, glistening in the light against the rugged mountain landscape, evoking a sense of adventure and exploration.

California’s gem mines offer an exciting opportunity for rockhounds to discover a variety of beautiful and rare gemstones. Whether you’re hunting for tourmaline in Pala or searching for the elusive blue benitoite, these mines provide unique experiences for gem enthusiasts of all skill levels. Be sure to pack the right tools, check the mine’s schedule, and prepare for a rewarding adventure into California’s geological wonders!


Enhance Your Gem Hunting Experience

For those who want to enjoy gem hunting at home, WonderDig offers premium gem mining adventure kits. These kits include a variety of high-quality crystals perfect for both beginners and experienced enthusiasts. Discover beautiful gemstones and enjoy a thrilling mining experience with WonderDig.

WonderDig Collection


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