- Page Title
- Amethyst Rosette (Flower Formation) | Natural History, Including The Juvenile Ceratosaurus, and the Largest Piece of Mars on Earth | Science | Sotheby's
- Brand
- sothebys.com
- Type
- Other
- First Seen
- 7/16/2025
- Last Seen
- 7/23/2025
- Domain
- sothebys.com
- URL
- https://www.sothebys.com/en/buy/auction/2025/natural-history-2/amethyst-rosette-flower-formation
- Description
- <p>Amethyst Rosette (Flower Formation)</p><p><em>Irai, Rio Grande do Sul, Uruguay</em></p><p><br></p><p>22 x 18.5 x 5.5 cm (8⅝ x 7¼ x 2⅛ inches). 612 grams (1.35 lb).</p>
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