| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Connecticut > Cordierite var. Iolite |
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| DESCRIPTION: | No. 81457 |
| Mineral: | Cordierite var. Iolite |
| Locality: | Route 9 road cut at Beaver Meadow Road, Haddam, Middlesex County, Connecticut |
| Description: | Unusually large specimen (for this old locality) with many large visible patches to 25 mm of blue iolite, the transparent blue gem variety of the mineral cordierite. The blue iolite color is most visible under daylight illumination. Ex. S. Kelland collection; ex. Alvin Fogg (1908-1994) collection (Poughkeepsie, NY) |
| Overall Size: | 12x9.5x5.5 cm |
| Crystals: | 5-25 mm |
| Archived: | For reference only |
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