| Reference Type | Journal (article/letter/editorial) |
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| Title | Whiteite-(CaMnFe), a new jahnsite-group mineral from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria |
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| Journal | European Journal of Mineralogy | ISSN | 0935-1221 |
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| Authors | Hochleitner, Rupert | Author |
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| Rewitzer, Christian | Author |
| Grey, Ian E. | Author |
| Mumme, William G. | Author |
| MacRae, Colin M. | Author |
| Kampf, Anthony R. | Author |
| Keck, Erich | Author |
| Gable, Robert W. | Author |
| Glenn, Alexander M. | Author |
| Year | 2023 (February 14) | Volume | 35 |
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| Page(s) | 95-103 | Issue | 1 |
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| Publisher | Copernicus GmbH |
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| URL | |
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| Download URL | https://ejm.copernicus.org/articles/35/95/2023/ejm-35-95-2023.pdf+ |
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| DOI | doi:10.5194/ejm-35-95-2023Search in ResearchGate |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 16878848 | Long-form Identifier | mindat:1:5:16878848:6 |
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| GUID | 3b2f03ed-7a6c-4852-a827-ee41bd93e6bf |
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| Full Reference | Hochleitner, Rupert, Rewitzer, Christian, Grey, Ian E., Mumme, William G., MacRae, Colin M., Kampf, Anthony R., Keck, Erich, Gable, Robert W., Glenn, Alexander M. (2023) Whiteite-(CaMnFe), a new jahnsite-group mineral from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria. European Journal of Mineralogy, 35 (1) 95-103 doi:10.5194/ejm-35-95-2023 |
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| Plain Text | Hochleitner, Rupert, Rewitzer, Christian, Grey, Ian E., Mumme, William G., MacRae, Colin M., Kampf, Anthony R., Keck, Erich, Gable, Robert W., Glenn, Alexander M. (2023) Whiteite-(CaMnFe), a new jahnsite-group mineral from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria. European Journal of Mineralogy, 35 (1) 95-103 doi:10.5194/ejm-35-95-2023 |
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| In | (2023) European Journal of Mineralogy Vol. 35 (1) Schweizerbart |
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| Abstract/Notes | Whiteite-(CaMnFe), CaMn2+Fe22+Al2(PO4)4(OH)2 ⋅ 8H2O, is a new whiteite-subgroup member of the jahnsite group from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany. It was found in vugs in an altered feldspar area of a specimen composed predominantly of rockbridgeite, with hureaulite and relic triphylite. Other associated minerals in small vugs in the specimen were strengite and laueite. Whiteite-(CaMnFe) occurs as sprays and clusters of colourless to pale yellow, rod-like crystals, with diameters of typically 10 to 50 µm and lengths up to ∼ 500 µm. The crystals are flattened on {001} and elongated along [010]. The measured density is 2.80(2) g cm−3. Optically, whiteite-(CaMnFe) crystals are biaxial (+), with α=1.608(3), β=1.612(3), γ=1.624(3) and 2V(meas.) = 59(1)∘. The empirical formula from electron microprobe analyses and structure refinement is (Ca0.70Mn0.30)Mn(Fe1.232+Mn0.49Mg0.29Zn0.06)(Al1.88Fe0.123+)(PO4)3.96(OH)2(H2O)8. Whiteite-(CaMnFe) is monoclinic, P2 /a, a=14.925(5), b=7.0100(14), c=10.053(2) Å, β=111.31(2)∘, V=979.9(4) Å3 and Z=2. The crystal structure was refined using single-crystal data to wRobs=0.052 for 1613 reflections with I>3σ(I). Site occupancy refinements confirm the ordering of dominant Ca, Mn and Fe2+ in the X, M1 and M2 sites, respectively, of the general jahnsite-group formula XM1M22M32(H2O)8(OH)2(PO4)4. |
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