Raw Black Obsidian Specimen
Updated September 17, 2026
| Lot number | 155 |
| Estimate | 25.00 - 50.00 USD |
| Auction | Harvest Moon: Silver, Jewelry, Art & More |
| Date | October 3, 2026 at 9:30 AM MDT |
| Auction house | Hamilton & Sons Auctions and Estates |
| Location | Missoula, Montana |
Large natural chunk of black obsidian volcanic glass with a glossy conchoidal fracture surface and rough matrix edges. Unpolished specimen. Dimensions: H: 2.5", W: 1.5", L: 3.25"
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