Our Family Story • Penryn, California

About The Hidden Gem Rock Shop

A family-owned rock, mineral, crystal, and lapidary shop built for collectors, makers, families, and curious first-timers.

Call 916-250-7281 Visit Us

The Story Behind The Shop

The Hidden Gem was built around one simple idea: rocks and minerals carry real history, and collecting should feel personal, honest, and approachable.

We created a shop where people can bring questions, discover pieces worth keeping, and leave understanding their material a little better than before.

Whether you are buying your first crystal, building a serious collection, cutting a stone, or trying to identify something you found outside, our goal is to make the experience feel welcoming, useful, and memorable.

“We’re not trying to be the biggest shop. We’re trying to be the one you trust.”

That means honest guidance, practical education, fair conversations, and a deep respect for the material.

What We Help With

Crystals & Minerals

Curated specimens for collecting, display, gifting, metaphysical use, and natural history lovers.

Rock Identification

Bring in your mystery rock, mineral, crystal, or field find and we’ll help guide you.

Lapidary Services

Stone cutting, polishing, slabbing, cabochons, and practical advice for your material.

Jewelry Cleaning

Careful cleaning for jewelry and select mineral-safe pieces, with honest care guidance.

Buy • Sell • Trade

We look at collections, estate minerals, specimens, jewelry, and unique rockhound finds.

Local Rockhound Help

We serve curious collectors throughout Penryn, Loomis, Rocklin, Roseville, Auburn, and Sacramento.

Our Approach

We focus on quality, honesty, education, and real-world usefulness. If a stone is not right for a project, we’ll tell you. If a piece needs special care, we’ll explain why. If you’re new, we’ll help you start without making it weird or intimidating.

Rock collecting should feel like discovery, not pressure.

Best Results For Rock ID

  • Bring the actual piece if possible.
  • Tell us where it was found.
  • Bring photos in natural light.
  • Do not acid-test or scratch-test before asking.

Visit The Hidden Gem

2210 Taylor Road Suite A, Penryn, CA 95663

Phone: 916-250-7281

Serving Penryn, Loomis, Roseville, Rocklin, Auburn, Lincoln, Granite Bay, Newcastle, and Sacramento.

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About The Hidden Gem Rock Shop in Penryn, California. Family-owned rock shop near Loomis, Roseville, Rocklin, Auburn, Lincoln, Granite Bay, Newcastle and Sacramento. Crystals, minerals, lapidary services, rock identification, stone cutting, polishing, jewelry cleaning, buy sell trade minerals. Address 2210 Taylor Road Suite A, Penryn, CA 95663.