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alunite supergroup

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Journal Article
Published: 02 August 2021
Mineralogical Magazine (2021) 85 (5): 808–816.
... relative to a SiC reference material by means of a Universal Microspectrophotometer UMSP 50 (Opton-Zeiss, Germany). oberwolfachite new mineral beudantite group alunite supergroup crystal structure IR spectroscopy Clara mine Monterniers mine According to the current nomenclature (Bayliss...
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Journal Article
Published: 01 December 2019
American Mineralogist (2019) 104 (12): 1806–1819.
...Nicholas D. Owen; Nigel J. Cook; Mark Rollog; Kathy J. Ehrig; Danielle S. Schmandt; Rahul Ram; Joël Brugger; Cristiana L. Ciobanu; Benjamin Wade; Paul Guagliardo Abstract Aluminum-phosphate-sulfate (APS) minerals of the alunite supergroup are minor components of uranium-bearing copper ores from...
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Journal Article
Published: 01 April 2019
Mineralogical Magazine (2019) 83 (2): 321.
... Sobocký , Pavel Uher , Radek Škoda , Tomáš Mikuš , Jarmila Luptáková and Patrik Konečný . ( 2018 ) Minerals of the rhabdophane group and the alunite supergroup in microgranite: products of low-temperature alteration in a highly acidic environment from the Velence Hills...
Journal Article
Published: 01 December 2018
Mineralogical Magazine (2018) 82 (6): 1277–1300.
...Martin Ondrejka; Peter Bačík; Tomáš Sobocký; Pavel Uher; Radek Škoda; Tomáš Mikuš; Jarmila Luptáková; Patrik Konečný ABSTRACT An assemblage of alunite-supergroup minerals (ASM), rhabdophane-group minerals (RGM), goethite and associated clay minerals occurs in Permian A-type porphyritic microgranite...
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Journal Article
Published: 01 September 2015
The Canadian Mineralogist (2015) 53 (5): 833–844.
... the first structurally characterized Sc and In members of the large alunite supergroup, and may serve as analogues in future studies of naturally occurring Fe or sulfate members. Alunite-type Cs analogues could not be synthesized hydrothermally, in agreement with the fact that no natural or synthetic Cs...
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Journal Article
Published: 01 October 2013
Mineralogical Magazine (2013) 77 (7): 3007–3017.
... so far, and has a very strong axial anisotropy. * E-mail: fabrizio.nestola@unipd.it 22 6 2013 19 9 2013 © 2013 The Mineralogical Society 2013 high pressure crystal structure alunite supergroup natrojarosite arsenoflorencite-(La) jarosite T he alunite...
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Journal Article
Published: 01 August 2012
Mineralogical Magazine (2012) 76 (4): 975–985.
... and 7.471 GPa, the first time this has been done for a member the alunite supergroup. The compressibility of arsenoflorencite-(La) is strongly anisotropic, with β c > β a . The main compression mechanism was found to be governed by the internal angle O3–La–O2 of the La polyhedron, where the O2 and O3...
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Journal Article
Published: 01 October 2010
Mineralogical Magazine (2010) 74 (5): 919–927.
... et al. ( 1991 ) did not submit the mineralto the CNMNC for approval before publication. The mineral and mineral name are questionable until properly proposed and approved by the CNMNC. Discredited, obsolete and other unapproved mineral names in the alunite supergroup are listed in Table 3...
Journal Article
Published: 01 June 2009
The Canadian Mineralogist (2009) 47 (3): 663–681.
... sont donc utiles pour distinguer ces composés. (Traduit par la Rédaction) Abstract Raman and IR spectroscopies, X-ray diffraction and chemical analysis have been used to characterize synthetic compounds of the alunite supergroup of formula AB 3 (SO 4 ) 2 (OH) 6 , with A = Na + , K + , H 3 O + and B...
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Journal Article
Published: 01 August 2006
The Canadian Mineralogist (2006) 44 (4): 951–958.
... to that of other members of the alunite supergroup. The Ba–O and Ba–OH distances are 2.825 and 2.859 Å (both ×6), respectively, and the volume of the Ba(O,OH) 12 polyhedron is 55.64 Å 3 . Energy-dispersion spectra and electron-microprobe analyses indicate that the site is completely occupied by Ba, but the site...
FIGURES
Journal Article
Published: 01 October 2000
The Canadian Mineralogist (2000) 38 (5): 1295–1297.
...Keith M. Scott § E-mail address : k.scott@dem.csiro.au © 2000 Mineralogical Association of Canada 2000 18 06 2000 The alunite–jarosite minerals are defined as having the general formula AB 3 ( X O 4 ) 2 (OH) 6 , where A is a large ion in 12-fold coordination ( e.g...
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Journal Article
Published: 01 October 2000
The Canadian Mineralogist (2000) 38 (5): 1298–1303.
...John L. Jambor § E-mail address : jlj@wimsey.com 16 08 2000 © 2000 Mineralogical Association of Canada 2000 It is gratifying that the paper on the nomenclature of the alunite supergroup stimulated sufficient interest to prompt the discussion by Scott (2000) . Although...
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Journal Article
Published: 01 December 1999
The Canadian Mineralogist (1999) 37 (6): 1323–1341.
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Composition of <span class="search-highlight">alunite</span>-<span class="search-highlight">supergroup</span> minerals showing  D -site occupancy in a ...
Published: 04 October 2023
Figure 9. Composition of alunite-supergroup minerals showing D -site occupancy in a Pb–(Sr+Ba+Ca)–Bi ternary diagram. (in atomic wt.%).
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Structural data for <span class="search-highlight">alunite</span>-<span class="search-highlight">supergroup</span> minerals.                  Mineral  ...
Published: 17 September 2020
Table 2. Structural data for alunite-supergroup minerals. Mineral Formula Cell parameters (Å) Φ calc. Φ from Xe, Xa, av. B–X–B A–Xe, A–Xa Ref.     a b (°) (°) (°) (Å)   Alunite group Jarosite KFe 3 (SO 4 ) 2 (OH) 6 7.291 17.144 22.0
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Raman bands of the jarosite studied compared to other <span class="search-highlight">alunite</span>-<span class="search-highlight">supergroup</span> mi...
Published: 01 December 2018
Table 5. Raman bands of the jarosite studied compared to other alunite-supergroup minerals. Band assignments were made according to Serna et al . ( 1986 ), Frost and Palmer ( 2011 ) and Frost et al . ( 2005 , 2006 a , 2006 b , 2011 ). Jrs Jrs HJrs PbJrs Alu Hin Cor VEL
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Backscattered electron images of zoned <span class="search-highlight">alunite</span> <span class="search-highlight">supergroup</span> minerals from the...
Published: 01 March 2016
Fig. 9 Backscattered electron images of zoned alunite supergroup minerals from the Veladero high-sulfidation epithermal gold deposit. Electron microprobe spot locations are numbered to correspond with element plots. A. Jarosite from Amable showing strong negative correlations between K and Pb
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CONDITIONS OF SYNTHESIS OF <span class="search-highlight">ALUNITE</span>-<span class="search-highlight">SUPERGROUP</span> COMPOUNDS
Published: 01 June 2009
TABLE 1. CONDITIONS OF SYNTHESIS OF ALUNITE-SUPERGROUP COMPOUNDS
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XRD patterns of synthetic <span class="search-highlight">alunite</span>-<span class="search-highlight">supergroup</span> compounds. The dominant  d -va...
Published: 01 June 2009
F ig . 1. XRD patterns of synthetic alunite-supergroup compounds. The dominant d -values are indicated for each compound, which are labeled according to the occupant of the A and the B sites.
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Raman spectra of synthetic Cr-based <span class="search-highlight">alunite</span>-<span class="search-highlight">supergroup</span> compounds. See  Figu...
Published: 01 June 2009
F ig . 4b. Raman spectra of synthetic Cr-based alunite-supergroup compounds. See Figure 4a for explanation.