| Mineral: | Zincochromite: ZnCr2O4
Roscoelite: K(V,Al,Mg)2AlSi3O10(OH)2
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| Comments: | Roscoelite segregation filled with rich impregnation zincochromite microcrystals (up to 60 vol.%). Metallic-white grains of clausthalite are visible. Inset polished section image shows crystals of zincochromite in chromceladonite matrix. |
| Location: | Srednyaya Padma U-V deposit, Zaonezhie peninsula, Lake Onega, Karelia Republic, Northern Region, Russia. |
| Scale: | Specimen size is 6x4x4 cm. |
| Copyright: | © Pavel M. Kartashov |
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