Black Tourmaline and Golden Mica Formation
Updated September 1, 2026
| Lot number | 0142 |
| Estimate | $50 - $80 |
| Opening bid | $1 |
| 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 |
Black tourmaline and golden mica formation. 4" x 6" x 3". 3 lb, 1 ounce.
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