Visit The Rock Shop In Penryn
Questions about crystals, minerals, rock identification, lapidary services, jewelry cleaning, search recovery, or buy/sell/trade? Call before stopping by.
Find Us In Penryn
The Hidden Gem Rock Shop
2210 Taylor Road, Suite A
Penryn, CA 95663
916-250-7281
hello@thehiddengemloomis.com
General Hours: Monday – Saturday • 10 AM – 6 PM
Closed Sunday
Hours can be flexible. Please call before stopping by.
Best Way To Get Help Fast
Rock ID
Bring the piece, photos in natural light, and where it was found.
Lapidary
Send size, material, and your goal: cut, slab, cabochon, polish, or display face.
Buy / Sell / Trade
Send clear photos of the full lot, closeups, labels, and any known history.
Services
- Crystals and minerals
- Rock identification
- Lapidary cutting and polishing
- Jewelry cleaning
- Metal detecting search and recovery
- Wholesale, buy, sell, trade, and consignment
FAQ
Do I need an appointment?
Not always, but please call first. We may be cutting, collecting, or working off-site.
Can you identify my rock?
Yes. Bring the piece and any location details for the best guidance.
Do you offer lapidary services?
Yes. We offer select rock cutting, slabbing, polishing, and cabochon work.
Do you buy collections?
Yes. Call or email photos first so we can review the lot.