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Birnessite
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| Mineral: | Birnessite: (Na,Ca,K)x(Mn++++,Mn+++)2O4·1.5(H2O) | |||||
| Comments: | Gray birnessite. Very small crystals on massive material. | |||||
| Location: | Das Aufgeklärte Glück Mine, Hasserode, Wernigerode, Harz Mts, Saxony-Anhalt, Germany. | |||||
| Scale: | Picture size 7 mm. | |||||
| Copyright: | © Thomas Witzke / Abraxas-Verlag | |||||
| Counter: | This Image has been shown 12451 times | |||||
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