Reference Type | Journal (article/letter/editorial) |
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Title | Aluminium-bearing strunzite derived from jahnsite at the Hagendorf-Süd pegmatite, Germany |
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Journal | Mineralogical Magazine |
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Authors | Grey, I. E. | Author |
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Macrae, C. M. | Author |
Keck, E. | Author |
Birch, W. D. | Author |
Year | 2012 (October) | Volume | 76 |
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Page(s) | 1165-1174 | Issue | 5 |
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Publisher | Mineralogical Society |
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Download URL | https://rruff.info/rruff_1.0/uploads/MM76_1165.pdf+ |
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DOI | doi:10.1180/minmag.2012.076.5.08Search in ResearchGate |
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Classification | Not set | LoC | Not set |
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Mindat Ref. ID | 244279 | Long-form Identifier | mindat:1:5:244279:6 |
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GUID | 0269c2d4-09ff-4d26-a9ad-e05d0fc481a9 |
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Full Reference | Grey, I. E., Macrae, C. M., Keck, E., Birch, W. D. (2012) Aluminium-bearing strunzite derived from jahnsite at the Hagendorf-Süd pegmatite, Germany. Mineralogical Magazine, 76 (5) 1165-1174 doi:10.1180/minmag.2012.076.5.08 |
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Plain Text | Grey, I. E., Macrae, C. M., Keck, E., Birch, W. D. (2012) Aluminium-bearing strunzite derived from jahnsite at the Hagendorf-Süd pegmatite, Germany. Mineralogical Magazine, 76 (5) 1165-1174 doi:10.1180/minmag.2012.076.5.08 |
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Abstract/Notes | Aluminium-bearing strunzite, [Mn0.65Fe0.26Zn0.08Mg0.01]2+[Fe1.50Al0.50]3+(PO4)2(OH)2·6H2O, occurs as fibrous aggregates in a crystallographically oriented association with jahnsite on altered zwieselite samples from the phosphate pegmatite at Hagendorf Süd, Bavaria, Germany. Synchrotron X-ray data were collected from a 3 μm diameter fibre and refined in space group P to R1 = 0.054 for 1484 observed reflections. The refinement confirmed the results of chemical analyses which showed that one quarter of the trivalent iron in the strunzite crystals is replaced by aluminium. The paragenesis revealed by scanning electron microscopy, in combination with chemical analyses and a crystal-chemical comparison of the strunzite and jahnsite structures, are consistent with strunzite being formed from jahnsite by selective leaching of (100) metal—phosphate layers containing large divalent Ca and Mn atoms. |
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