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Humboldtine : Fe[C2O4] · 2H2O | |
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Santa Maria de Itabira, Minas Gerais, Southeast Region, Brazil This sample have 30x20mm and the crystals of Humboldtine have 0,5mm. Sample from Rolando and Bruno Gioia collection. Bruno Gioia photograph. |
| © Bruno Gioia | Photo ID: 16105 View Count: 764 |
Humboldtine : Fe[C2O4] · 2H2O | |
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Lomnice, Sokolov (Falkenau an der Eger), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic Yellow crystals of humboldtine. Picture size 1.5 mm. Photographer and collection Thomas Witzke. |
| © Thomas Witzke | Photo ID: 8113 View Count: 634 |
Humboldtine : Fe[C2O4] · 2H2O | |
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Lomnice, Sokolov (Falkenau an der Eger), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic Picture-Width = 7mm |
| © Elmar Lackner | Photo ID: 42404 View Count: 387 |
Humboldtine : Fe[C2O4] · 2H2O | |
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Lomnice, Sokolov (Falkenau an der Eger), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic Yellow crust of Humboldtine on matrix Size: 2,8 x 2 cm Collection and photo: Arliguie M |
| © Arliguie M | Photo ID: 98487 View Count: 208 |
Humboldtine : Fe[C2O4] · 2H2O | |
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Lomnice, Sokolov (Falkenau an der Eger), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic dimension area mm. 8 x 8 photo and collection Luigi Chiappino |
| © luigi chiappino | Photo ID: 213421 View Count: 75 |
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