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Journal Article

Jahnsite-(MnMnZn), a new jahnsite-group mineral, and formal approval of the jahnsite group

Anthony R. Kampf, Pedro Alves, Anatoly Kasatkin, Radek Škoda
Published: 01 January 2019
European Journal of Mineralogy (2019) 31 (1): 167–172.
DOI: https://doi.org/10.1127/ejm/2018/0030-2800
...Anthony R. Kampf; Pedro Alves; Anatoly Kasatkin; Radek Škoda Jahnsite-(MnMnZn) (IMA2017-113), Mn 2 2 + Zn 2 Fe 2 3 + ( PO 4 ) 4 ( OH ) 2 ∙ 8 H 2 O , is a new member of the jahnsite group from the Herdade dos Pendões mine, Beja district, southwest Portugal. It formed in a highly altered gossan...
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Jahnsite-(NaMnMn), a New Jahnsite-Group Mineral from the Wiperaminga Hill West Quarry, Boolcoomatta Reserve, South Australia, Australia

Peter Elliott, Anthony R. Kampf
Published: 28 December 2023
The Canadian Journal of Mineralogy and Petrology (2023) 61 (6): 1163–1173.
DOI: https://doi.org/10.3749/2300007
...Peter Elliott; Anthony R. Kampf Abstract Jahnsite-(NaMnMn), NaMn 2+ (Mn 2+ Fe 3+ ) 2 Fe 3+ 2 (PO 4 ) 4 (OH) 2 ·8H 2 O, is a new mineral from the Wiperaminga Hill West Quarry, Boolcoomatta Reserve, Olary Province, South Australia, Australia. The mineral occurs in seams in a matrix comprising...
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Whiteite-(MnMnMn), a new jahnsite-group mineral species from the Foote mine, North Carolina, USA, and chemical pressure effects in jahnsite-group minerals.

Ian E. Grey, Jason B. Smith, Anthony R. Kampf, W. Gus Mumme, Colin M. MacRae, Alan Riboldi-Tunnicliffe, Stephanie Boer, Alexander M. Glenn, Robert W. Gable
Published: 18 October 2021
Mineralogical Magazine (2021) 85 (6): 862–867.
DOI: https://doi.org/10.1180/mgm.2021.75
...Ian E. Grey; Jason B. Smith; Anthony R. Kampf; W. Gus Mumme; Colin M. MacRae; Alan Riboldi-Tunnicliffe; Stephanie Boer; Alexander M. Glenn; Robert W. Gable Abstract Whiteite-(MnMnMn), Mn 2+ Mn 2+ Mn 2+ 2 Al 2 (PO 4 ) 4 (OH) 2 ⋅8H 2 O, is a new whiteite-subgroup member of the jahnsite group from...
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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
...Ian E. Grey; Erich Keck; Anthony R. Kampf; Colin M. MacRae; John D. Cashion; A. Matt Glenn Abstract Jahnsite-(CaMnZn), CaMn 2+ Zn 2 Fe 3+ 2 (PO 4 ) 4 (OH) 2 ⋅8H 2 O, is a new jahnsite-group mineral associated with alteration of phosphophyllite at the Hagendorf-Süd pegmatite, Bavaria. It forms...
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Jahnsite-(NaMnMg), A New Jahnsite-Group Mineral from the Sapucaia Mine, Brazil and the White Rock No. 2 Quarry, Australia

Anthony R. Kampf, Peter Elliott, Barbara P. Nash, Luigi Chiappino, Sergio Varvello
Published: 01 November 2018
The Canadian Mineralogist (2018) 56 (6): 871–882.
DOI: https://doi.org/10.3749/canmin.1800053
...Anthony R. Kampf; Peter Elliott; Barbara P. Nash; Luigi Chiappino; Sergio Varvello Abstract Jahnsite-(NaMnMg), (Na,Ca)(Mn 2+ ,Fe 3+ )(Mg,Fe 3+ ,Mn 3+ ) 2 Fe 3+ 2 (PO 4 ) 4 (OH) 2 (H 2 O) 8 , is a new mineral from the Sapucaia pegmatite, Conselheiro Pena pegmatite district, Minas Gerais, Brazil...
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On the occurrence of jahnsite/whiteite phases on Mars: A thermodynamic study

Christophe Drouet, Matteo Loche, Sébastien Fabre, Pierre-Yves Meslin
Published: 01 September 2022
American Mineralogist (2022) 107 (9): 1807–1817.
DOI: https://doi.org/10.2138/am-2022-8174
...Christophe Drouet; Matteo Loche; Sébastien Fabre; Pierre-Yves Meslin Abstract Jahnsites/whiteites are a large family of phosphate hydrate minerals of relevance to terrestrial and martian mineralogy. It was recently hypothesized as being present in Gale Crater sediments from XRD analyses performed...
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Jahnsite-(MnMnMg), Mn 2+ Mn 2+ Mg 2+ 2 Fe 3+ 2 (PO 4 ) 4 (OH) 2 ·8H 2 O, a New Phosphate Mineral Species from Sapucaia Pegmatite, Sapucaia Do Norte, Galiléia, Minas Gerais, Brazil

Pietro Vignola, Frédéric Hatert, Maxime Baijot, Nicola Rotiroti, Andrea Risplendente, Sergio Varvello
Published: 16 May 2019
The Canadian Mineralogist (2019) 57 (3): 363–370.
DOI: https://doi.org/10.3749/canmin.1800078
...Pietro Vignola; Frédéric Hatert; Maxime Baijot; Nicola Rotiroti; Andrea Risplendente; Sergio Varvello Abstract Jahnsite-(MnMnMg), Mn 2+ Mn 2+ Mg 2+ 2 Fe 3+ 2 (PO 4 ) 4 (OH) 2 ·8H 2 O, is a new phosphate mineral belonging to the jahnsite subgroup contained in the jahnsite group of minerals...
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Segelerite from the Mount Deverell variscite deposit, Western Australia. Hydrogen bonding and relationship to jahnsite

Ian E. Grey, W. Gus Mumme, Peter J. Downes, Benjamin A. Grguric, Robert W. Gable
Published: 01 May 2019
European Journal of Mineralogy (2019) 31 (3): 465–471.
DOI: https://doi.org/10.1127/ejm/2019/0031-2829
... = 0.048 for 2082 unique reflections and all H atoms were located during the refinement. Cell parameters are a = 14.7772(2) Å, b = 18.7079(2) Å, c = 7.2424(1) Å, space group Pbca . The H-bonding scheme is described and compared to that for the combinatorial polymorph, jahnsite. The crystal structures...
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Whiteite-(mnmnmg), a New Jahnsite-Group Mineral from Iron Monarch, South Australia: Description and Crystal Structure

Peter Elliott, Anthony C. Willis
Published: 01 March 2019
The Canadian Mineralogist (2019) 57 (2): 215–223.
DOI: https://doi.org/10.3749/canmin.1800070
...Peter Elliott; Anthony C. Willis Abstract Whiteite-(MnMnMg), is a new jahnsite-group mineral found at the Iron Monarch Quarry, Iron Knob, South Australia, Australia, where it occurs associated with triploidite, rhodochrosite, and an unidentified Ca,Mn phosphate carbonate mineral. The new mineral...
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Jahnsite-(mnmnfe), Mn 2+ Mn 2+ Fe 2+ 2 Fe 3+ 2 (PO 4 ) 4 (OH) 2 ·8H 2 O, a New Phosphate Mineral from the Malpensata Pegmatite, Olgiasca, Colico Municipality, Lecco Province, Italy

Pietro Vignola, Frédéric Hatert, Nicola Rotiroti, Fabrizio Nestola, Andrea Risplendente, Francesco Vanini
Published: 01 March 2019
The Canadian Mineralogist (2019) 57 (2): 225–233.
DOI: https://doi.org/10.3749/canmin.1800077
...Pietro Vignola; Frédéric Hatert; Nicola Rotiroti; Fabrizio Nestola; Andrea Risplendente; Francesco Vanini Abstract Jahnsite-(MnMnFe), Mn 2+ Mn 2+ Fe 2+ 2 Fe 3+ 2 (PO 4 ) 4 (OH) 2 ·8H 2 O (IMA 2018-096), is a new phosphate belonging to the jahnsite subgroup of the jahnsite group of minerals...
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Minerals in the arrojadite, alluaudite and jahnsite–whiteite groups from the Mount Wills pegmatite field, Victoria, Australia

William D. Birch
Published: 01 May 2018
European Journal of Mineralogy (2018) 30 (3): 635–645.
DOI: https://doi.org/10.1127/ejm/2018/0030-2729
... Mount Wills Granite. The phosphates include members of the arrojadite, alluaudite and jahnsite–whiteite groups, most commonly forming fine-grained intergrowths that have replaced primary phases such as triplite, wolfeite and presumed triphylite. Electron microprobe analysis has enabled...
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Jahnsite-(CaFeMg), a new mineral from Tom’s quarry, South Australia: description and crystal structure

Peter Elliott
Published: 01 December 2016
European Journal of Mineralogy (2016) 28 (5): 991–996.
DOI: https://doi.org/10.1127/ejm/2016/0028-2562
...Peter Elliott Abstract Jahnsite-(CaFeMg) is a new member of the whiteite–jahnsite group from Tom’s Quarry, Kapunda, South Australia, Australia where it occurs as a low-temperature secondary mineral. Jahnsite-(CaFeMg) forms brownish orange prismatic crystals to 0.2 mm in length. Crystals...
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Whiteite-(camgmg), CaMg 3 Al 2 (PO 4 ) 4 (OH) 2 ·8H 2 O, a New Jahnsite-group Mineral from the Northern Belle Mine, Candelaria, Nevada, U.s.a.

Anthony R. Kampf, Paul M. Adams, Barbara P. Nash
Published: 01 November 2016
The Canadian Mineralogist (2016) 54 (6): 1513–1523.
DOI: https://doi.org/10.3749/canmin.1600051
...), 2.849(45) , and 2.805(100)(022). The structure ( R 1 = 4.36% for 1401 reflections with F o > 4σ F ) is the same as that of other jahnsite-group minerals. §   Corresponding author e-mail address : [email protected] 11 June 2016 22 August 2016 © 2016 Mineralogical Association...
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Aluminium-bearing strunzite derived from jahnsite at the Hagendorf-Süd pegmatite, Germany

I. E. Grey, C. M. Macrae, E. Keck, W. D. Birch
Published: 01 October 2012
Mineralogical Magazine (2012) 76 (5): 1165–1174.
DOI: https://doi.org/10.1180/minmag.2012.076.5.08
...I. E. Grey; C. M. Macrae; E. Keck; W. D. Birch Abstract Aluminium-bearing strunzite, [Mn 0.65 Fe 0.26 Zn 0.08 Mg 0.01 ] 2+ [Fe 1.50 Al 0.50 ] 3+ (PO 4 ) 2 (OH) 2 ·6H 2 O, occurs as fibrous aggregates in a crystallographically oriented association with jahnsite on altered zwieselite samples from...
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Jahnsite–whiteite solid solutions and associated minerals in the phosphate pegmatite at Hagendorf-Süd, Bavaria, Germany

I. E. Grey, W. G. Mumme, S. M. Neville, N. C. Wilson, W. D. Birch
Published: 01 December 2010
Mineralogical Magazine (2010) 74 (6): 969–978.
DOI: https://doi.org/10.1180/minmag.2010.074.6.969
.... Nordgauite nodules enclose crystals of the jahnsite–whiteite group of minerals, showing pronounced compositional zoning, spanning the full range of Fe/Al ratios between jahnsite and whiteite. The whiteite-rich members are F-bearing, whereas the jahnsite-rich members contain no F. Associated minerals include...
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THE KECKITE PROBLEM AND ITS BEARING ON THE CRYSTAL CHEMISTRY OF THE JAHNSITE GROUP: MÖSSBAUER AND ELECTRON-MICROPROBE STUDIES

Rupert Hochleitner, Karl Thomas Fehr
Published: 01 December 2010
The Canadian Mineralogist (2010) 48 (6): 1445–1453.
DOI: https://doi.org/10.3749/canmin.48.6.1445
...Rupert Hochleitner; Karl Thomas Fehr Abstract Keckite is considered to be a member of the jahnsite group, though the formula originally given does not conform to the general formula of minerals of that group. In this study, samples of keckite from different localities, including the type locality...
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Jahnsite-(NaFeMg), a new mineral from the Tip Top mine, Custer County, South Dakota: Description and crystal structure

Anthony R. Kampf, Ian M. Steele, Thomas A. Loomis
Published: 01 May 2008
American Mineralogist (2008) 93 (5-6): 940–945.
DOI: https://doi.org/10.2138/am.2008.2771
...Anthony R. Kampf; Ian M. Steele; Thomas A. Loomis Abstract Jahnsite-(NaFeMg), NaFe 3+ Mg 2 Fe 2 3+ (PO 4 ) 4 (OH) 2 ·8H 2 O, space group P 2/ a , a = 15.0811(16), b = 7.1403(8), c = 9.8299(11) Å, β = 110.445(1)°, V = 991.8(2) Å 3 , and Z = 2, is a new mineral from the Tip Top mine, Custer County...
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Jahnsite-(CaMnMn), a new member of the whiteite group from Mangualde, Beira, Portugal

Joel D. Grice, Pete J. Dunn, Robert A. Ramik
Published: 01 April 1990
American Mineralogist (1990) 75 (3-4): 401–404.
...Joel D. Grice; Pete J. Dunn; Robert A. Ramik Abstract Jahnsite-(CaMnMn), a new mineral species from Mangualde, Beira, Portugal, occurs as equant, brownish yellow crystals to 0.5 mm, associated with phosphosiderite, zodacite, varulite, and microcline. The mineral is transparent and has a vitreous...
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Overite, segelerite, and jahnsite; a study in combinatorial polymorphism

P. B. Moore, T. Araki
Published: 01 August 1977
American Mineralogist (1977) 62 (7-8): 692–702.
...(1) A, orthorhombic, space group Pbca , are related in a combinatorial way to jahnsite, [Mg(H 2 O) 4 ] 2 [ C a M n 2 + F e 2 3 + ( O H ) 2 ( P O 4 ) 4 ] , Z = 2, a = 14.94(2), b = 7.14(1), c = 9.93(1) A, β = 110.16(8)°, monoclinic, space group P2/a. R = 0.090 for 19l5 reffections (overite) and 0.236...
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Jahnsite, CaMn, 2+ Mg 2 (H 2 O) 8 Fe 8+ 2 (OH) 2 [PO 4 ] 4 : A novel stereoisomerism of ligands about octahedral corner-chains

Paul Brian Moore, Takaharu Araki
Published: 01 October 1974
American Mineralogist (1974) 59 (9-10): 964–973.
...Paul Brian Moore; Takaharu Araki Abstract Jahnsite, CaMn 2+ Mg 2 (H 2 O) 8 Fe 3+ 2 (OH) 2 [PO 4 ] 4 , a 14.94(2)Å, b 7.14(1)Å, c 9.93(1) Å,β110.16(8)°, P 2/ a , Z =2, is one of the 7 Åoctahedral comer-linked chain structures allied to laueite, pseudolaueite, childrenite, etc . R ( hkl )–0.09...
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