Your inventory
Add specimens, mint NFTs, and list them on the exchangeCollection
Add specimen
Quick entry
Manual input
Price estimation uses market averages and specimen characteristics. Connect your account to save items and list them for sale with real PayPal payments. Note: All payments are held in escrow by BarbrickDesign (BarbrickDesign@gmail.com) until delivery is confirmed.
Inventory items
Click row to select
Actions: List for sale
| ID | Mineral | Wgt (g) | Classification | Status |
|---|
No item selected.
3D rendering placeholder. In production, stream .glb models here
and wire to your photogrammetry pipeline.
Grand Exchange marketplace
Global listings for all users; GE-style order book behaviorMarketplace
Order book
Open listings
All users
| Type | Mineral | Price (USD) | Owner | Status | Action |
|---|
Click the PayPal button to purchase items directly. Payments are processed securely through PayPal and held in escrow by BarbrickDesign (BarbrickDesign@gmail.com) until delivery is confirmed.
Once you receive and confirm your item, the funds will be released to the seller.
Mineral price index
OHLC-style history
Per mineral
Current snapshot
Mineral: Amethyst
Last price: $112.00
24h change: +3.4%
24h volume: 18.4 units
Price notes
Internal GE-style index based on recent trades. For metals like
gold, link spot price and show collector premium.
Price data is tracked from completed marketplace transactions and stored locally.
Historical trends help inform fair market values for minerals and crystals.
🏆 Top Ranked Sellers
Ranked by revenue
Location tracked
Seller rankings will appear here as transactions are completed.