| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Idaho > Ilvaite with Quartz |
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| DESCRIPTION: | No. 81866 |
| Mineral: | Ilvaite with Quartz |
| Locality: | Laxey Mine, South Mountain District, Owyhee County, Idaho |
| Description: | Lustrous black prismatic ilvaite crystal with four-sided pyramidal termination. The ilvaite crystal has a post-crystallization fracture where microscopic colorless quartz crystals grew with white fibrous unidentified mineral (sepiolite?). Ex. Miller collection T2418; ex. Betts #62441 |
| Overall Size: | 29x15x10 mm |
| Crystals: | micro to 29 mm |
| Archived: | For reference only |
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