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aerinite

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Journal Article
Published: 01 September 2019
European Journal of Mineralogy (2019) 31 (5-6): 999–1005.
...Anna Crespi; Oriol Vallcorba; Igors Šics; Jordi Rius A brown variety of the fibrous chain silicate aerinite has been identified by synchrotron through-the-substrate (tts) microdiffraction [ a = 16.937(2), c = 5.223(1) Å, V = 1297.5(3) Å 3 , P 3 c 1, illuminated sample volume = 15 × 15 × 30 μm 3...
FIGURES | View All (6)
Journal Article
Published: 01 January 2009
European Journal of Mineralogy (2009) 21 (1): 233–240.
...Jordi Rius; Anna Crespi; Anna Roig; Joan Carles Melgarejo Abstract Pale-blue fibres of an Fe 3+ -rich variety of aerinite from Tartareu (Catalunya, Spain) were studied by synchrotron powder diffraction. Crystal data and composition are: a = b = 16.9161(1), c = 5.2289(1) Å, V = 1296 Å 3 , space...
FIGURES | View All (4)
Journal Article
Published: 01 January 2004
European Journal of Mineralogy (2004) 16 (1): 127–134.
...Jordi RIUS; Erik ELKAIM; Xavier TORRELLES Abstract The structure of aerinite, a blue fibrous silicate mineral associated with the alteration of ophitic rocks in the southern Pyrenees, has been determined by applying the direct methods modulus sum function to synchrotron powder diffraction data...
FIGURES | View All (6)
Image
“Powder” diffraction pattern of brown <span class="search-highlight">aerinite</span> (with some residual glass-su...
Published: 01 September 2019
Fig. 5 “Powder” diffraction pattern of brown aerinite (with some residual glass-substrate contribution) obtained by circularly averaging 2D tts-μXRD images (black pattern); (below, blue pattern) rescaled powder pattern of pale-blue aerinite fibers from the external part of the same specimen
Image
(a) Photomicrograph under transmitted light of a zone of the polished thin ...
Published: 01 September 2019
Fig. 1 (a) Photomicrograph under transmitted light of a zone of the polished thin section containing, in the middle, brown aerinite (points analysed by EMPA lie inside the yellow frame) and, in the right bottom corner of the image, pale-blue aerinite; (b) BSE image of the same zone (the yellow
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Results of the Rietveld refinement of <span class="search-highlight">aerinite</span>.
Published: 01 January 2004
Tab. 2. Results of the Rietveld refinement of aerinite.
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Mössbauer spectrum of <span class="search-highlight">aerinite</span> at room temperature.
Published: 01 January 2004
Fig. 1. Mössbauer spectrum of aerinite at room temperature.
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(a) Wet chemical analysis (wt%) of <span class="search-highlight">aerinite</span> of St. Pandelon (France), data ...
Published: 01 January 2004
Tab 1. (a) Wet chemical analysis (wt%) of aerinite of St. Pandelon (France), data from Azambre & Monchoux (1988) (b) XRF analysis of major elements of aerinite from Camporells-Estopanyà with Fe 2+ /Fe 3+ ratio determined by Mössbauer spectroscopy. The total H 2 O + CO 2 wt% estimated
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Infrared spectrum of <span class="search-highlight">aerinite</span> in the 4000–400 cm -1  range.
Published: 01 January 2004
Fig. 3. Infrared spectrum of aerinite in the 4000–400 cm -1 range.
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BSE (a) and secondary electron SEM (b) images of the micrometric bundles of...
Published: 01 September 2019
Fig. 2 BSE (a) and secondary electron SEM (b) images of the micrometric bundles of brown aerinite fibers at two different magnifications.
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Nomenclature used in the description of <span class="search-highlight">aerinite</span>. M1a is at ( x ,  y ) = (0...
Published: 01 January 2009
Fig. 1. Nomenclature used in the description of aerinite. M1a is at ( x , y ) = (0, 0) and M1b at (1/3, 2/3), both at different heights.
Journal Article
Published: 01 January 2019
European Journal of Mineralogy (2019) 31 (1): 195–196.
... are looking at. That is a very user-friendly approach, to say the least. Aerinite comes first on pages 14–15, and that actually surprised me, since I vaguely remembered aerinite was first found in Spain. Apparently the mineral was poorly defined and thought to be a mixture, until new specimens were found...
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Rietveld plot of brown <span class="search-highlight">aerinite</span>. Top: Observed pattern with calculated one ...
Published: 01 September 2019
Fig. 6 Rietveld plot of brown aerinite. Top: Observed pattern with calculated one below. Bottom: Difference between observed and calculated pattern. The vertical markers show positions calculated for Bragg reflections.
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TG and DTG curves of <span class="search-highlight">aerinite</span> between room temperature and 1000°C. The shar...
Published: 01 January 2004
Fig. 2. TG and DTG curves of aerinite between room temperature and 1000°C. The sharp DIG peak at approximately 240°C is due to the loss of CO 2 .
Image
Photomicrograph of a polished thin section of the Tartareu specimen (transm...
Published: 01 January 2009
Fig. 2. Photomicrograph of a polished thin section of the Tartareu specimen (transmitted polarised light, 2.8 × 2.8 mm 2 ). The mineral association formed by pale-blue aerinite (PB), the closely related phase (B) and laumontite (A) can be identified.
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Element distribution maps of the region shown in the BSE image (yellow fram...
Published: 01 September 2019
Fig. 3 Element distribution maps of the region shown in the BSE image (yellow frame in Fig 1a ). The negative correlation between Mn and Ca outlines the brown and pale-blue aerinite regions. A positive correlation between the chemical elements Ca and Si is also observed.
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The structure of  <span class="search-highlight">aerinite</span>  projected ( a ) along the  c -axis and ( b ,  c...
Published: 26 February 2020
Fig. 10. The structure of aerinite projected ( a ) along the c -axis and ( b , c , d ) the structural modules that contain 2 T 2 chains viewed orthogonal to the c -axis. Fine dashed black lines outline the unit cell and H atoms associated with (OH) − and (H 2 O) groups and C atoms
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Schematic view along  c  of the unit cell of pale-blue <span class="search-highlight">aerinite</span> with atom l...
Published: 01 September 2019
Fig. 4 Schematic view along c of the unit cell of pale-blue aerinite with atom labeling ( Rius et al. , 2009 ). The columnar units are joined by structural units formed by slabs of corner-sharing octahedra of M2 and M3 atoms. The carbonate ions are centered along the ternary axis at (2/3, 1/3
Journal Article
Published: 01 August 2005
The Canadian Mineralogist (2005) 43 (4): 1436–1437.
... with holtedahlite. The fact that anduoite occurs in the löllingite group is missing. The reference to admontite ( Am. Mineral. 65 , 205) does not include the errata in 65 , 1311. The structure reference to aerinite should be “ 84 , 1467” instead of “ 84 , 1464–1468”, as the abstract is only one paragraph...
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Final Rietveld plots of <span class="search-highlight">aerinite</span> for the 2𝛉 intervals: (a, top) 2–32° and ...
Published: 01 January 2004
Fig. 4. Final Rietveld plots of aerinite for the 2𝛉 intervals: (a, top) 2–32° and (b, bottom) 32–62°. The calculated pattern is represented by a solid line and the observed data by circles. The lower trace is the difference between observed and calculated patterns. The vertical markers show