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andremeyerite

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Journal Article

Crystal structure of andremeyerite, BaFe(Fe,Mn,Mg)Si 2 O 7

Elio Cannillo, Fiorenzo Mazzi, Giuseppe Rossi
Published: 01 June 1988
American Mineralogist (1988) 73 (5-6): 608–612.
...Elio Cannillo; Fiorenzo Mazzi; Giuseppe Rossi Abstract The sorosilicate andremeyerite is monoclinic pseudo-orthorhombic, a = 7.488, b = 13.785, c = 7.085 Å, β = 118.23°, space group P 2 1 / c ; it always shows multiple (100) twinning. The crystal structure was determined by Patterson and Fourier...
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Scottyite, the natural analog of synthetic BaCu 2 Si 2 O 7 , a new mineral from the Wessels mine, Kalahari Manganese Fields, South Africa

Hexiong Yang, Robert T. Downs, Stanley H. Evans, William W. Pinch
Published: 01 February 2013
American Mineralogist (2013) 98 (2-3): 478–484.
DOI: https://doi.org/10.2138/am.2013.4326
... and clinobarylite), Fe (andrémeyerite), Mg, Mn, Co, and Zn. Table 4 Selected bond distances (Å) in scottyite and synthetic BaCu 2 Si 2 O 7 Scottyite Synthetic BaCu 2 Si 2 O 7 Ba-O1 2.715(2) 2.713(5) Ba-O2 x2 2.857(2) 2.863(3) Ba-O2 x2 2.932(2) 2.932(3) Ba-O3 2.741(2) 2.749(3...
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Bennesherite, Ba 2 Fe 2+ Si 2 O 7 : A new melilite group mineral from the Hatrurim Basin, Negev Desert, Israel

Arkadiusz Krzątała, Biljana Krüger, Irina Galuskina, Yevgeny Vapnik, Evgeny Galuskin
Published: 03 January 2022
American Mineralogist (2022) 107 (1): 138–146.
DOI: https://doi.org/10.2138/am-2021-7747
... ( Andersen et al. 2014 ). These rocks contain the other rare barium sorosilicate–andrémeyerite, Ba Fe 2 2 + Si 2 O 7 , composed of the same chemical constituents as bennesherite, but with a different Ba:Fe 2+ atomic ratio. This different ratio is related to the different structural...
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First occurrence of moskvinite-(Y) in the Ilímaussaq alkaline complex, South Greenland – implications for rare-earth element mobility

Henrik Friis
Published: 01 February 2016
Mineralogical Magazine (2016) 80 (1): 31–41.
DOI: https://doi.org/10.1180/minmag.2016.080.047
...- and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift . Lithos , 206 , 164 – 178 . Bailey , J.C. , Gwozdz , R. , Rose-Hansen , J. and Sørensen , H. ( 2001 ) Geochemical overview of the Ilímaussaq alkaline complex, South Greenland . Pp. 35 – 53...
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Substitution of ‘small’ divalent cations (e.g. Mg) for Si and Al in the nepheline tetrahedral framework: 2. The occurrence of Mg-rich nepheline and kalsilite

Ítalo Lopes de Oliveira, C. Michael B. Henderson
Published: 14 March 2022
Mineralogical Magazine (2022) 86 (2): 254–262.
DOI: https://doi.org/10.1180/mgm.2022.25
...- and götzenite-bearing nephelinite at Nyiragongo, Virunga Volcanic Province in the East African Rift . Lithos , 152 , 105 – 121 . Andersen T. , Elburg M. and Erambert M. ( 2014 ) Extreme peralkalinity in delhayelite- and andremeyerite-bearing nephelinite from Nyiragongo volcano, East...
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Thermodynamic properties of natural melilites

Lyubov P. Ogorodova, Yuliya D. Gritsenko, Marina F. Vigasina, Andrey Y. Bychkov, Dmitry A. Ksenofontov, Lyubov V. Melchakova
Published: 01 December 2018
American Mineralogist (2018) 103 (12): 1945–1952.
DOI: https://doi.org/10.2138/am-2018-6475
...; B = Al, Mg, Fe 2+ , Zn, Be, B; T = Al, Si, B. There are 11 minerals in the melilite group: gehlenite, åkermanite, alumoåkermanite, hardystonite, gugiaite, okayamalite, barylite, andremeyerite, leucophanite, jeffreyite, and meliphanite ( Back 2014 ). Their structure is tetragonal with the space...
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The Beacon Heights “Tinguaite” (Phonolite): A recrystallised agpaitic ignimbrite in the Mesoproterozoic Pilanesberg alkaline complex, South Africa

J.U. Akoh, M.A. Elburg, T. Andersen
Published: 01 September 2023
South African Journal of Geology (2023) 126 (3): 261–274.
DOI: https://doi.org/10.25131/sajg.126.0017
... at Nyiragongo, Virunga Volcanic Province in the East African Rift . Lithos , 152 , 105 – 121 . Andersen , T. , Elburg , M. and Erambert , M. , 2014 . Extreme peralkalinity in delhayelite- and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift . Lithos , 206...
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THE CRYSTAL STRUCTURES OF THREE NEW COMPLEX SILICATES OF SCANDIUM

Maria Wierzbicka-Wieczorek, Uwe Kolitsch, Ekkehart Tillmanns
Published: 01 February 2010
The Canadian Mineralogist (2010) 48 (1): 51–68.
DOI: https://doi.org/10.3749/canmin.48.1.51
... . Cannillo , E. , Mazzi , F. & Rossi , G. ( 1988 ): Crystal structure of andremeyerite: BaFe(Fe, Mn, Mg)Si 2 O 7 . Am. Mineral . 73 , 608 – 612 . Chiang Pei-Yun , Lin Tsai-Wei , Dai Jian-Hung , Chang Bor-Chen & Lii Kwang-Hwa ( 2007 ): Flux synthesis...
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Crystal chemistry and Raman spectroscopy study of bennesherite, Ba 2 Fe 2+ Si 2 O 7 , and rare accessory Ba minerals from Caspar quarry, Bellerberg volcano, Germany

Rafał Juroszek, Bernd Ternes
Published: 13 July 2022
Mineralogical Magazine (2022) 86 (5): 777–791.
DOI: https://doi.org/10.1180/mgm.2022.62
...- and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift . Lithos , 206–207 , 164 – 178 . Ardit M. , Cruciani G. and Dondi M. ( 2010 ) The crystal structure of Sr-hardystonite, Sr 2 ZnSi 2 O 7 . Zeitschrift für Kristallographie , 225 , 298 – 301 . Ardit...
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