Large Museum-Grade Windowed Vivianite Crystal Formation
Updated September 1, 2026
| Lot number | 0447 |
| Estimate | $4,500 - $5,000 |
| Opening bid | $1,500 |
| Category | Pottery, China & Glass |
| 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 |
Large, ultra-rare, museum grade translucent green vivianite crystal cluster formation with windows from Brazil. 9.5" x 7" x 4". 6 lb, 12 ounces.
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