| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Norway > Cordierite var. Iolite |
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| DESCRIPTION: | No. 63299 |
| Mineral: | Cordierite var. Iolite |
| Locality: | Aust Agder, Norway |
| Description: | Transparent fragment of iolite, the pleochroic blue-violet gem variety of the mineral species cordierite, that exhibits distinct color change when rotated from violet to deep blue and yellow under polarized illumination. Ex. Perham's Maine Mineral Store |
| Overall Size: | 21x12x9 mm |
| Crystals: | |
| Archived: | For reference only |
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