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schmidite

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Journal Article

Schmidite and wildenauerite, two new schoonerite-group minerals from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria

Ian E. Grey, Erich Keck, Anthony R. Kampf, John D. Cashion, Colin M. MacRae, Alexander M. Glenn, Yesim Gozukara
Published: 01 April 2019
Mineralogical Magazine (2019) 83 (2): 181–190.
DOI: https://doi.org/10.1180/mgm.2018.123
...Ian E. Grey; Erich Keck; Anthony R. Kampf; John D. Cashion; Colin M. MacRae; Alexander M. Glenn; Yesim Gozukara Abstract Schmidite, Zn(Fe 3+ 0.5 Mn 2+ 0.5 ) 2 ZnFe 3+ (PO 4 ) 3 (OH) 3 (H 2 O) 8 and wildenauerite, Zn(Fe 3+ 0.5 Mn 2+ 0.5 ) 2 Mn 2+ Fe 3+ (PO 4 ) 3 (OH) 3 (H 2 O) 8 are two new oxidised...
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Crystal chemistry of schoonerite-group minerals

Ian Edward Grey, Anthony R. Kampf, Erich Keck, Colin M. MacRae, John D. Cashion, Yesim Gozukara
Published: 01 May 2018
European Journal of Mineralogy (2018) 30 (3): 621–634.
DOI: https://doi.org/10.1127/ejm/2018/0030-2707
... previous studies on type schoonerite and the SGMs wilhelmgümbelite and schmidite to evaluate the main crystallochemical relations between the minerals. Elements Zn and Fe 3+ are essential to the structure and are ordered in specific sites, while Mn and Fe are distributed relatively uniformly over three...
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Representative compositions (wt.%) for <span class="search-highlight">schmidite</span> and wildenauerite. ...

Representative compositions (wt.%) for schmidite and wildenauerite. ...

Published: 01 April 2019
Table 3. Representative compositions (wt.%) for schmidite and wildenauerite. Schmidite IGC-1 15 crystals Schmidite IGC-31 12 crystals Wildenauerite IGC-14 10 crystals Constituent Mean S.D. Mean S.D. Mean S.D. Standard ZnO 15.5 0.8 15.8 0.6 11.5 0.7
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Fitted Mössbauer spectrum for <span class="search-highlight">schmidite</span> (specimen IGC-1).

Fitted Mössbauer spectrum for schmidite (specimen IGC-1).

Published: 01 April 2019
Fig. 5. Fitted Mössbauer spectrum for schmidite (specimen IGC-1).
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Thermogravimetric (green) and differential scanning calorimetry (blue) curv...

Thermogravimetric (green) and differential scanning calorimetry (blue) curv...

Published: 01 April 2019
Fig. 6. Thermogravimetric (green) and differential scanning calorimetry (blue) curves for schmidite (specimen IGC-1).
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Site occupancies for metal atoms in <span class="search-highlight">schmidite</span> and wildenauerite. ...

Site occupancies for metal atoms in schmidite and wildenauerite. ...

Published: 01 April 2019
Table 7. Site occupancies for metal atoms in schmidite and wildenauerite. Schmidite, IGC-31 [5] Zn 0.802(2) Zn [4] Zn 0.198(2) Zn M 1 * 0.12(1) Zn + 0.57 Fe 3+  + 0.31 Mn 2+ M 2 0.65 Fe 3+  + 0.35 Mn 2+ M 3 0.45(1) Zn + 0.10 Fe 3+  + 0.04 Fe 2+  + 0.21 Mn 2
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Red <span class="search-highlight">schmidite</span> crystals on a substrate of yellowish, microcrystalline, alter...

Red schmidite crystals on a substrate of yellowish, microcrystalline, alter...

Published: 01 April 2019
Fig. 2. Red schmidite crystals on a substrate of yellowish, microcrystalline, altered phosphophyllite. Specimen IGC-1, Museums Victoria, registration number M53810. Field of view = 2 mm (photo by Christian Rewitzer).
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Optical properties of <span class="search-highlight">schmidite</span>, wildenauerite and wilhelmgümbelite. ...

Optical properties of schmidite, wildenauerite and wilhelmgümbelite. ...

Published: 01 April 2019
Table 1. Optical properties of schmidite, wildenauerite and wilhelmgümbelite. Schmidite (IGC-31) Wildenauerite Wilhelmgümbelite * Indices α 1.642(2) 1.659(3) 1.650(2) β 1.680(1) 1.687(3) 1.669(2) γ 1.735(2) 1.742(3) 1.718(2) Pleochroism X light
Journal Article

Secondary Zn-bearing phosphate minerals associated with alteration of phosphophyllite at Hagendorf-Süd, Bavaria

Ian E. Grey, Erich Keck, Colin M. MacRae, A. Matt Glenn, W. Gus Mumme, Anthony R. Kampf, John D. Cashion
Published: 01 September 2018
European Journal of Mineralogy (2018) 30 (5): 1007–1020.
DOI: https://doi.org/10.1127/ejm/2018/0030-2763
... of studies conducted on the alteration of phosphophyllite in a heavily corroded triphylite nodule from the 67 m level of the pegmatite mine. The most abundant secondary phosphate minerals associated with phosphophyllite are oxidized schoonerite-group minerals, including the new mineral schmidite, [5] Zn [6...
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Yellow crust of zinc-bearing jahnsite minerals on twinned, heavily corroded...

Yellow crust of zinc-bearing jahnsite minerals on twinned, heavily corroded...

Published: 08 May 2020
Fig. 1. Yellow crust of zinc-bearing jahnsite minerals on twinned, heavily corroded phosphophyllite. Associated minerals include green mitridatite and red schmidite. FOV is 3 mm. Photo V. Betz. Specimen stored at Museums Victoria under the registration number M55028.
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Mössbauer parameters (mm&#x2F;s) for <span class="search-highlight">schmidite</span> and wildenauerite: δ, isomer shif...

Mössbauer parameters (mm/s) for schmidite and wildenauerite: δ, isomer shif...

Published: 01 April 2019
Table 2. Mössbauer parameters (mm/s) for schmidite and wildenauerite: δ, isomer shift; Δ, quadrupole splitting; σ(Δ), Gaussian component; A, area of doublet. δ mm/s Δ mm/s σ(Δ) mm/s Α % Atoms pfu Assignment * Schmidite 0.38(2) 0.45(6) 0.02 23 0.53 Fe 3+ in M 4
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Hydrogen bonds for <span class="search-highlight">schmidite</span>, IGC-31 [Å and °]. D −H··· A d ( D...

Hydrogen bonds for schmidite, IGC-31 [Å and °]. D −H··· A d ( D...

Published: 01 April 2019
Table 11. Hydrogen bonds for schmidite, IGC-31 [Å and °]. D −H··· A d ( D −H) d (H··· A ) d ( D ··· A ) <( D H A ) OW1−H1A···O4 0.85(7) 1.92(8) 2.672(4) 147(6) OW1−H1B···O1 0.87(7) 2.46(8) 2.850(4) 107(6) OW2−H2···OW1 0.84(1) 1.93(2) 2.764(4) 167(4
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Data collection and refinement details for <span class="search-highlight">schmidite</span>. IGC-31 IGC-...

Data collection and refinement details for schmidite. IGC-31 IGC-...

Published: 01 April 2019
Table 6. Data collection and refinement details for schmidite. IGC-31 IGC-1 Crystal data Empirical formula Zn 1.46 Mn 2+ 0.86 Mg 0.05 Fe 2+ 0.04 Fe 3+ 2.30 Al 0.06 P 3 O 23.21 H 19.47 Zn 1.47 Mn 2+ 0.98 Mg 0.05 Fe 2+ 0.04 Fe 3+ 2.27 P 3 O 23.23 H 19.97 Crystal
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Powder diffraction data ( d in Å) for <span class="search-highlight">schmidite</span> (specimen IGC-1). ...

Powder diffraction data ( d in Å) for schmidite (specimen IGC-1). ...

Published: 01 April 2019
Table 4. Powder diffraction data ( d in Å) for schmidite (specimen IGC-1). I obs I calc d meas d calc h k l I obs I calc d meas d calc h k l I obs I calc d meas d calc h k l 100 100 12.73 12.73 0 2 0 98
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Selected interatomic distances (Å) in <span class="search-highlight">schmidite</span> and wildenauerite. ...

Selected interatomic distances (Å) in schmidite and wildenauerite. ...

Published: 01 April 2019
Table 10. Selected interatomic distances (Å) in schmidite and wildenauerite. Schmidite Wildenauerite Schmidite Wildenauerite IGC-31 IGC-31 P1−O1 1.541(3) 1.544(1) P2−O5 1.527(4) 1.538(2) P1−O2 1.519(3) 1.528(1) P2−O6 1.535(5) 1.545(2) P1−O3 1.528(3
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Leached phosphophyllite crystals from the 67-m nodule. Extensive leaching h...

Leached phosphophyllite crystals from the 67-m nodule. Extensive leaching h...

Published: 01 September 2018
Fig. 2 Leached phosphophyllite crystals from the 67-m nodule. Extensive leaching has left shells of yellow rind. Residual white phosphophyllite in twinned crystal. The surrounding red mineral is the schoonerite-group mineral schmidite. Field of view (FOV) ∼10 mm. Photo V. Betz (Online version
Journal Article

New Minerals and Nomenclature Modifications Approved in 2017

Ulf Hålenius, Frédéric Hatert, Marco Pasero, Stuart J. Mills
Published: 01 June 2017
European Journal of Mineralogy (2017) 29 (3): 529–533.
DOI: https://doi.org/10.1127/ejm/2017/0029-2662
..., registration number M53809 How to cite: Mills, S.J., Kampf, A.R., Sutton, P. and Birch, W.D. (2017) Betpakdalite-FeFe, IMA 2017-011. CNMNC Newsletter No. 37, June 2017, page 532; European Journal of Mineralogy , 29 , 529–533. IMA No. 2017-012 Schmidite [Zn 2 (Fe 3+ ,Mn 2+ ) 2 Fe 3+ (PO 4 ) 3...
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New minerals and nomenclature modifications approved in 2017

U. Hålenius, F. Hatert, M. Pasero, S. J. Mills
Published: 01 June 2017
Mineralogical Magazine (2017) 81 (3): 737–742.
DOI: https://doi.org/10.1180/minmag.2017.081.039
.... (2017) Schmidite, IMA 2017-012. CNMNC Newsletter No. 37, June 2017, page 741; Mineralogical Magazine , 81 , 737–742. IMA No. 2017-013 Chlorellestadite Ca 5 (SiO 4 ) 1.5 (SO 4 ) 1.5 Cl NW slope of the Shadil Khokh volcano, Kel'sky volcanic Plateau, Greater Caucasus Mountain Range...
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Jahnsite-(CaMnZn) from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, and structural flexibility of jahnsite-group minerals

Ian E. Grey, Erich Keck, Anthony R. Kampf, Colin M. MacRae, John D. Cashion, A. Matt Glenn
Published: 08 May 2020
Mineralogical Magazine (2020) 84 (4): 547–553.
DOI: https://doi.org/10.1180/mgm.2020.40
...Fig. 1. Yellow crust of zinc-bearing jahnsite minerals on twinned, heavily corroded phosphophyllite. Associated minerals include green mitridatite and red schmidite. FOV is 3 mm. Photo V. Betz. Specimen stored at Museums Victoria under the registration number M55028. ...
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Manganflurlite, Zn Mn 3 2 + Fe 3+ (PO 4 ) 3 (OH) 2 (H 2 O) 7 ·2H 2 O, a new schoonerite-related mineral from the Hagendorf-Süd pegmatite

Anthony R. Kampf, Ian E. Grey, Colin M. MacRae, Erich Keck
Published: 01 January 2019
European Journal of Mineralogy (2019) 31 (1): 127–134.
DOI: https://doi.org/10.1127/ejm/2018/0030-2793
... =  M 3 = Fe 2+ , is an example of a relatively unoxidized SGM, for which x  = 0, y  = 2 and only the [5] Zn site is occupied ( Kampf, 1977 ), whereas wilhelmgumbelite, schmidite, and wildenauerite are oxidized SGMs, with the iron predominantly as Fe 3+ , and with partial partitioning of the Zn from...
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