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Unusual Gems
Chip Clark
| Specimen | Catalog Number | Locality | Weight |
|---|---|---|---|
| Rhodonite | NMNH G8039 | Australia, New South Wales | 4.85 ct |
| Titanite | NMNH G9721 | Madagascar | 14.35 ct |
| Kornerupine | NMNH G3782 | Madagascar | 7.60 ct |
| Euclase | NMNH G8834 | Brazil, Minas Gerais | 18.29 ct |
| Prehnite | NMNH G8923 | Australia | 8.51 ct |
| Benitoite | NMNH G3387 | United States, California | 7.70 ct |
| Willemite | NMNH G1898 | United States, New Jersey | 11.80 ct |
Center, a deep red rhodonite gem (4.9ct) from Australia. Clockwise from top: a pale blue-green euclase gem (18.3ct) from Brazil; a yellow titanite gem (14.4ct) from Madagascar; a green, kite-shaped kornerupine gem (7.6ct) from Madagascar; one of the largest known brilliant blue benitoite gems (7.66ct) from San Benito County, California, the sole source for specimens so deeply colored; a delicate yellow prehnite gem (8.5ct) from Australia; and a golden colored willemite gem (11.7ct) from Franklin, New Jersey.