Welcome to Sage & Stone
The home for mineral specimen collectors — track your collection, check a piece before you buy, and shop a trust-first marketplace.
Track your collection
Catalog every specimen — locality, dimensions, provenance — and watch its value update.
Visual Check
Upload a photo before you buy for a likely identification and red flags to watch for.
Trusted marketplace
Buy and sell with escrow protection, tracked shipping, and human-reviewed disputes.
Free to start No credit card
