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Alunogen : Al2(SO4)3·17H2O | |
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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany specimen size = 8 cm |
| © Frank de Wit | Photo ID: 10595 View Count: 1064 |
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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany Picture width is 5mm; yellow clusters of Ammoniojarosite. |
| © Elmar Lackner | Photo ID: 73084 View Count: 599 |
Boussingaultite : (NH4)2Mg(SO4)2·6H2O | |
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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany White boussingaultite. Picture size 5 mm. Photographer and collection Thomas Witzke. |
| © Thomas Witzke | Photo ID: 9952 View Count: 642 |
Clairite : (NH4)2Fe3(SO4)4(OH)3·3H2O | |
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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany Picture width is 2,5mm. Yellow-orange crystals of Clairite. Mineral is formed on a burning coal dump ! Depth of field is achieved with CombineZM. |
| © Elmar Lackner | Photo ID: 80720 View Count: 274 |
Clairite : (NH4)2Fe3(SO4)4(OH)3·3H2O, Unnamed (NH4-Fe-Na-Cl Sulphate) : (NH4,K)4Fe2(OH)2(SO4)4·NaCl , Metavoltine : Na6K2FeFe6(SO4)12O2·18H2O | |
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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany the darkbrown xls are clairite, the yellowbrown metavoltine, the green and white xls are yet unknown phases(the green phase is the "Unnamed (NH4-Fe-Na-Cl sulphate)" photo&collection: Frank de Wit (width=15mm) |
| © Frank de Wit | Photo ID: 16120 View Count: 666 |
Clairite : (NH4)2Fe3(SO4)4(OH)3·3H2O, Rostite : Al[OH|SO4] · 5H2O | |
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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany Brown crystals of clairite on rostite. Picture size 5 mm. Photographer and collection Thomas Witzke. |
| © Thomas Witzke | Photo ID: 10591 View Count: 456 |
Clairite : (NH4)2Fe3(SO4)4(OH)3·3H2O, Rostite : Al[OH|SO4] · 5H2O | |
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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany Small brown tabular to equant crystals of clairite on rostite. Picture size 0.8 mm. Photographer and collection Thomas Witzke. |
| © Thomas Witzke | Photo ID: 10592 View Count: 401 |
Clairite : (NH4)2Fe3(SO4)4(OH)3·3H2O | |
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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany 1 cm area of yellow clairite on white probable tschermigite. S409-089 Gunnar Farber specimen. |
| © 2009, JGW | Photo ID: 256754 View Count: 13 |
Kremersite : (NH4,K)2[Fe3+Cl5(H2O)] | |
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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany Orange crystals of kremersite. Picture size 1.5 mm. Photographer and collection Thomas Witzke. |
| © Thomas Witzke | Photo ID: 9953 View Count: 643 |
Kremersite : (NH4,K)2[Fe3+Cl5(H2O)] | |
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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany photo&collection: Frank de Wit (width=5mm) |
| © Frank de Wit | Photo ID: 16119 View Count: 412 |
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