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Franciscanite : Mn2+6(V5+,[])2[(O,OH)3|SiO4]2 |
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Valgraveglia Mine (Gambatesa Mine), Reppia, Graveglia Valley, Ne, Genova Province, Liguria, Italy
Red-orange resinous masses of franciscanite in hausmannite ore. Fiel of view 6 mm. Collection and photo G. Armellino |
| © G. Armellino | Photo ID: 225909 View Count: 183 |
Franciscanite : Mn2+6(V5+,[])2[(O,OH)3|SiO4]2 |
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Pennsylvania Mine, San Antonio Valley, Santa Clara Co., California, USA
Brownish red massive Franciscanite with black grains of Braunite from the type locality, the Pennsylvania mine, Santa Clara co., California, USA. Field of view: 3 cm. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 74514 View Count: 414 |