Copper Ore in Matrix
Updated September 1, 2026
| Lot number | 0037 |
| Estimate | $500 - $600 |
| Opening bid | $175 |
| Auction | Fall Rock and Fossil Timed Clearance Auction |
| Date | September 19, 2026 at 1:00 PM EDT |
| Auction house | Fossils & Gemstones of Houston |
| Location | Houston, Texas |
Copper ore in matrix from the Winonia Mine in Houghton County, Michigan. 5" x 5.5" x 1". 1 pound, 13 ounces.
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