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Fluoro-magnesio-arfvedsonite : [Na][Na2][Mg4Fe3+][(F,OH)2|[Si8O22] | |
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Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia Small, 0.03 cm, crystal fragment of pure fluoro-magnesio-arfvedsonite, photographed adhering to the inside of a gelatin capsule. S325-01 Excalibur Mineral specimen. |
| © 2008, JGW | Photo ID: 154413 View Count: 145 |
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