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Walpurgite : (BiO)4(UO2)[AsO4]2 · 3H2O | |
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Jáchymov (St Joachimsthal), Ostrov, Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic ~ 1 mm area (the central one) covered by typical aggregates of walpurgite. The mineral is one of 3 known natural Bi-U-As minerals. Specimen obtained at Tisnov Mineral Show in May 2008. |
| © Ł Kruszewski 08 | Photo ID: 169013 View Count: 93 |
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Schmiedestollen dump, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany Picture width 3 mm. Collection and photograph Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 34454 View Count: 632 |
Walpurgite : (BiO)4(UO2)[AsO4]2 · 3H2O | |
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Schmiedestollen dump, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany Picture width 3mm. Photographer and collection O. Dziallas. |
| © O. Dziallas | Photo ID: 40132 View Count: 409 |
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Schmiedestollen dump, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany Picture width 2,5 mm. Collection and photo Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 88904 View Count: 263 |
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Schmiedestollen dump, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany Picture width is 3mm. Yellow crystals of Walpurgite and some green Mixite. |
| © Elmar Lackner | Photo ID: 75167 View Count: 238 |
Walpurgite : (BiO)4(UO2)[AsO4]2 · 3H2O, Mixite : BiCu6[(OH)6|(AsO4)3] · 3H2O | |
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Schmiedestollen dump, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany Picture width is 3mm. Yellow crystals of Walpurgite and some green Mixite. |
| © Elmar Lackner | Photo ID: 75166 View Count: 183 |
Walpurgite : (BiO)4(UO2)[AsO4]2 · 3H2O, Mixite : BiCu6[(OH)6|(AsO4)3] · 3H2O | |
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Schmiedestollen dump, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany Picture width is 8mm. Very nice specimen with yellow Walpurgite crystals and green Mixite. Depth of field is achieved with CombineZM. |
| © Elmar Lackner | Photo ID: 97032 View Count: 173 |
Walpurgite : (BiO)4(UO2)[AsO4]2 · 3H2O | |
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Schmiedestollen dump, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany beautiful group of parallel tabular yellow crystals of walpurgite up to 1.6 mm. Photo Enrico Bonacina, Collection Domenico Preite |
| © D.Preite | Photo ID: 147247 View Count: 149 |
Walpurgite : (BiO)4(UO2)[AsO4]2 · 3H2O | |
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Schmiedestollen dump, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany tabular yellow crystals of walpurgite up to 0.5 mm. with acicular azure crystals of mixite Photo Enrico Bonacina, Collection Domenico Preite |
| © D. Preite | Photo ID: 147248 View Count: 115 |
Walpurgite : (BiO)4(UO2)[AsO4]2 · 3H2O | |
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Schmiedestollen dump, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany Dimension area mm. 2 x 2 photo and collection Luigi Chiappino |
| © luigi chiappino | Photo ID: 212002 View Count: 54 |
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