About The Hidden Gem
The Hidden Gem is a locally owned rock, mineral & lapidary shop in Loomis, CA. We help collectors, families, and curious first-timers find pieces worth keeping, learn what they have, and care for it the right way. We proudly serve Loomis, Placer County, and the greater Sacramento area.
Address: 3765 Circle Drive (Cottage), Loomis, CA 95650 • 916-250-7281
Our Story
The Hidden Gem was built around one idea: rocks and minerals carry real history, and collecting should feel personal, approachable, and honest. We created a Loomis shop where collectors, families, and first-timers can come in with questions, find pieces worth keeping, and leave understanding their material a little better than before.
We’re intentionally local and hands-on. Much of what we carry is shaped by time spent sourcing and learning in the real world, and that experience shows up in how we curate specimens, give safe care guidance, and help with practical rock identification.
We don’t chase hype. We focus on quality, education, and trust—whether you’re buying a gift, building a collection, or figuring out what you found on a hike.
What We Help With
- Crystals & minerals: curated pieces for collecting, display, and gifting
- Rock identification: guidance on what you have and what to do next
- Lapidary services: select cutting & polishing projects
- Care guidance: safe cleaning and display tips
Best results for Rock ID
Bring the piece and where it was found, or bring photos. The more context you have, the better the identification guidance.
For lapidary projects
Bring size/dimensions and your goal (cabochon, pendant, polish, display finish). If the material isn’t a match for the outcome, we’ll tell you and explain the best alternative.
Our Approach
We focus on quality, honesty, and education. That means we’ll tell you what’s realistic for a project, help you choose the right material for the outcome you want, and point you toward safe care techniques.
If you’re searching for a “rock shop near me” or “crystal shop near Sacramento,” our goal is simple: make your visit worth the trip.
Hours & Availability
Our hours are flexible and may vary because we’re often out in the field collecting, sourcing new material, or working on off-site projects. To make sure we’re available when you arrive, please call or text 916-250-7281 before stopping by.
Address: 3765 Circle Drive (Cottage), Loomis, CA 95650
Serving Loomis & the Greater Sacramento Area
We’re proud to be a local Loomis shop serving Placer County and nearby cities including Roseville, Rocklin, Lincoln, Auburn, Granite Bay, and Sacramento. If you’re coming from out of town, call first so you don’t arrive while we’re out collecting.