Comparison of X-ray Evidence of Marine Manganese Nodules and Non-marine Manganese Ore Deposits
X-ray diffraction evidence of manganese nodules confirm earlier reports on the presence of more or less finely divided buserite (10 Å phase), birnessite (7 Å phase), and random stacked birnessite. The iron bearing phase is most probably ferrihydrite, i,e. “amorphous” FeOOH. Non-marine manganese ore...
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| Main Authors: | , |
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| Format: | Article |
| Language: | deu |
| Published: |
Swiss Chemical Society
1975-06-01
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| Series: | CHIMIA |
| Online Access: | https://www.chimia.ch/chimia/article/view/9225 |
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| Summary: | X-ray diffraction evidence of manganese nodules confirm earlier reports on the presence of more or less finely divided buserite (10 Å phase), birnessite (7 Å phase), and random stacked birnessite. The iron bearing phase is most probably ferrihydrite, i,e. “amorphous” FeOOH. Non-marine manganese ores of similar composition except for iron, hitherto accepted as a defined mineral species “ todorokite ”, are buserite partly dehydrated to birnessite and partly reduced to manganite γ-MnOOH.
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| ISSN: | 0009-4293 2673-2424 |