Hochleitnerite, (K (H<sub>2</sub>O)) Mn<sub>2</sub>(Ti<sub>2</sub>Fe)(PO<sub>4</sub>)<sub>4</sub>O<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>  ⋅  4H<sub>2</sub>O, a new paulkerrite-group mineral, from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany
Abstract 2 O)]Mn2 (Ti2 Fe)(PO4) 4 O2 (H2 O) 10 ⋅ 2 O, is a new paulkerrite-group mineral from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany. It was found in specimens of altered zwieselite, in association with fluorapatite, rockbridgeite, columbite and sub-micrometre rods of uranophane. Hochleitnerite occurs as isolated and intergrown pale-yellow, diamond-shaped tablets with thicknesses reaching 50 µ m and lengths of 120 µ m. The crystals are flattened on {010}, slightly elongated on [001], and bounded by the {111} and {010} forms. The calculated density is 2.40 g cm- 3 + α = 1.615 (2), β = 1.621 (2) and γ = 1.645 (2) (measured in white light). The calculated 2V ∘. The empirical formula is [K (H2 O)](Mn1.51 2 + Fe0.49 2 +)Σ 2.00 1.62 4 + Fe0.19 3 + Al0.15)Σ 2.96 4) 4.00 1.50 F0.23 (OH) 0.27 ]Σ 2.00 2 O) 10 ⋅ 2 O. Hochleitnerite has space group Pbca a = 10.5513 (3) Å, b = 20.6855 (17) Å, c = 12.4575 (4) Å, V = 2718.96 (15) Å3 and Z = 4. The crystal structure was refined using single-crystal data to wR obs = 0.082 for 2242 reflections with I > σ (I). The crystal structure contains corner-connected linear trimers of Ti-centred octahedra that share corners with PO4 tetrahedra to form 10-member rings parallel to (010). K+ cations and water molecules are located within the rings. Additional corner sharing of the PO4 tetrahedra with MnO2 (H2 O) 4 octahedra occurs along [010] to complete the 3D framework structure.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Hochleitnerite, (K (H2O)) Mn2(Ti2Fe)(PO4)4O2(H2O)10 ⋅ 4H2O, a new paulkerrite-group mineral, from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany ; volume:35 ; number:4 ; year:2023 ; pages:635-643 ; extent:9
European journal of mineralogy ; 35, Heft 4 (2023), 635-643 (gesamt 9)
- Urheber
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Grey, Ian E.
Keck, Erich
Kampf, Anthony R.
MacRae, Colin M.
Gable, Robert W.
Mumme, William G.
Wilson, Nicholas C.
Glenn, Alexander M.
Davidson, Cameron
- DOI
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10.5194/ejm-35-635-2023
- URN
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urn:nbn:de:101:1-2023081004312578520168
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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2025-08-14T10:48:32+0200
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Beteiligte
- Grey, Ian E.
- Keck, Erich
- Kampf, Anthony R.
- MacRae, Colin M.
- Gable, Robert W.
- Mumme, William G.
- Wilson, Nicholas C.
- Glenn, Alexander M.
- Davidson, Cameron
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