| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Montana > Corundum |
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| DESCRIPTION: | No. 7982 |
| Mineral: | Corundum |
| Locality: | Bureau of Mine Shaft, Gallatin County, Montana |
| Description: | An excellent matrix specimen of blue-gray corundum crystals to 16 mm from the famous sapphire producing region of Montana. More of the largest crystal is exposed on the back side. Mounted in box for protection. Ex. R. Bates Collection #1290 |
| Overall Size: | 6x5x2.5 cm |
| Crystals: | 10-16 mm |
| Archived: | For reference only |
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