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Smithsonian Gem & Mineral Collection
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| Garnet is a group name for certain silicate materials that share a similar structure. Their color is so intense that, except in strong light, cut stones of any size appear almost black. Smithsonian's National Museum of Natural History. |
| Last modified 2026-08-09 MZ |
Smithsonian photos by Dane A. Penland Copyright 1992 Smithsonian Institution |
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