ROCK & MINERAL GROUPING INCL. ONYX & AGATE
Updated August 13, 2026
| Lot number | 0137 |
| Estimate | $50 - $10,000 |
| Opening bid | $50 |
| Auction | ESTATE DISCOVERY ANTIQUES MID-CENTURY 699 |
| Date | August 20, 2026 at 11:00 AM EDT |
| Auction house | Westport Auction |
| Location | Norwalk, Connecticut |
(21) items including agate, green onyx, polished stone blocks and more. Dimensions: (Largest) H 7" x W 6" x D 5.75" Condition: Wear consistent with age. Some soiling, oxidizing, mineral deposits.
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