Contra Costa Mineral & Gem Show

Presented by Contra Costa Mineral & Gem Society.

From Greg’s collection

Plan your visit

A weekend among stones.

Explore Contra Costa Mineral & Gem Show at Centre Concord in Concord. Check Greg’s current schedule before planning to meet him.

All times are local Pacific time.

Ask about a particular piece or a custom project before planning your visit.

HAND-CUT BY GREG