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katophorite

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Journal Article
Published: 19 January 2023
Mineralogical Magazine (2023) 87 (2): 324–330.
...Fernando Colombo; Jordi Rius; Elies Molins; Héctor Biglia; Miguel Á. Galliski; María Florencia Márquez-Zavalía; Edgardo G. A. Baldo; Agustín Kriscautzky Abstract Ferro-ferri-katophorite (IMA2016–008), ideally Na(NaCa)(Fe 2+ 4 Fe 3+ )(Si 7 Al)O 22 (OH) 2 , was found as xenocrysts up to 3 cm long...
FIGURES
Journal Article
Published: 02 July 2018
Mineralogical Magazine (2019) 83 (3): 413–417.
...Roberta Oberti; Massimo Boiocchi; Frank C. Hawthorne; Neil A. Ball; Robert F. Martin Abstract Ferri-fluoro-katophorite is the second species characterised involving the rootname katophorite in the sodium–calcium subgroup of the amphibole supergroup. The mineral and its name were approved...
Journal Article
Published: 01 April 2015
Mineralogical Magazine (2015) 79 (2): 355–363.
...Roberta Oberti; Massimo Boiocchi; Frank C. Hawthorne; Neil A. Ball; George E. Harlow Abstract Katophorite has the ideal formula A Na B (NaCa) C (Mg 4 Al) T (Si 7 Al)O 22 W (OH) 2 ( Hawthorne et al. , 2012 ). No published analyses of amphiboles fall in the katophorite compositional field, except...
FIGURES
Published: 01 January 2013
EISBN: 9780903056434
...) for magnesiokatophorite; γ = y , O.A.P. ⊥(010) for katophorite D (g/cm 3 ) 2.97—3.45 3.20—3.50 H 5—6 5—6 Cleavage {110} perfect; {100}, {001} partings; (110):(1ī0) ~ 56º Twinning {100} simple, lamellar {100} Colour Brown, yellow, brownish red, pale to dark green; colourless, pale yellow...
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Approved species bearing the <span class="search-highlight">katophorite</span> root name.        Name   Compositi...
Published: 19 January 2023
Table 8. Approved species bearing the katophorite root name. Name  Composition  Reference  Ferri-fluoro-katophorite Na(NaCa)(Mg 4 Fe 3+ )(Si 7 Al)O 22 F 2 Oberti et al . ( 2019 ) Ferri-katophorite Na(NaCa)(Mg 4 Fe 3+ )(Si 7 Al)O 22 (OH) 2 Pushcharovskii et al. ( 2003
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BSE images of samples from the Ena dike illustrating: (a) core–rim texture ...
Published: 24 March 2023
as inclusions in phlogopite; K-feldspar in the groundmass; (d) katophorite replacing diopside phenocrysts; zoned amphibole (katophorite–nybøite) and K-feldspar occur in the groundmass; ilmenite inclusion in phlogopite; (e) zoned subhedral to euhedral apatite, zoned amphibole (eckermannite–arfvedsonite), and K
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(a) Masses of aegirine–augite and amphibole (number 1) and biotite (number ...
Published: 19 January 2023
Fig. 1. (a) Masses of aegirine–augite and amphibole (number 1) and biotite (number 2) scattered in silicocarbonatite outcrop; (b) aggregate of granular ferro-ferri-katophorite associated with calcite and albite, in silicocarbonatite (FC collection #02257); (c) photomicrograph under plane
Journal Article
Published: 01 February 2018
Mineralogical Magazine (2018) 82 (1): 35–58.
... fide lamproites in terms of the presence of phlogopite (Ti-rich, Al-poor phlogopite and tetraferriphlogopite); amphiboles (potassic-arfvedsonite, potassic-richterite, potassic-ferro-richterite, potassic-katophorite, Ti-rich potassic-katophorite, Ti-rich potassic-magnesio-katophorite); Al-poor...
FIGURES | View All (13)
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Mössbauer spectrum of ferro-ferri-<span class="search-highlight">katophorite</span>.
Published: 19 January 2023
Fig. 2. Mössbauer spectrum of ferro-ferri-katophorite.
Journal Article
Published: 31 January 2019
Mineralogical Magazine (2019) 83 (3): 401–411.
... with potassic-arfvedsonite, magnesio-riebeckite, Ti-rich potassic-magnesio-arfvedsonite, potassic-magnesio-arfvedsonite, katophorite and potassic-ferri-katophorite), Al-poor pyroxene, phlogopite (Ti-rich, Al-poor), pseudomorphed leucite, spinel (chromite-magnesiochromite), fluorapatite, baryte, titanite, rutile...
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Journal Article
Published: 01 October 2013
The Canadian Mineralogist (2013) 51 (5): 735–770.
...), with less common late-stage sodic-calcic amphiboles (katophorite, magnesio-katophorite, ferro-richterite, and taramite); sodic amphiboles (ferro-ferri-nybøite, ferri-nybøite) are only observed in agpaitic pegmatites. All early pegmatite mafic minerals in low agpaitic pegmatites have negative Eu anomalies...
FIGURES | View All (25)
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Crystal-chemical formulae of ferro-ferri-<span class="search-highlight">katophorite</span> calculated according t...
Published: 19 January 2023
Table 2. Crystal-chemical formulae of ferro-ferri-katophorite calculated according to different normalisation schemes. Average of rim compositions taken from Casquet et al. ( 2008a )*.   Single crystal  Single crystal  Single crystal  Single crystal  Rim    (Fe 2+ /Fe 3+ ratio
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Site populations for ferro-ferri-<span class="search-highlight">katophorite</span>.        Site    N     Site pop...
Published: 19 January 2023
Table 7. Site populations for ferro-ferri-katophorite. Site  N   Site populations (apfu)  Site scattering (epfu)  Mean bond length (Å)  SREF  EMP  Refined  Calculated  T (1) 4 1.39 Al + 2.61 Si         T (2) 4 4.00 Si         M (1) 2 0.750 Mg + 0.318
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Chemical composition of ferro-ferri-<span class="search-highlight">katophorite</span> (single crystal data from t...
Published: 19 January 2023
Table 1. Chemical composition of ferro-ferri-katophorite (single crystal data from this work, and rims around aegirine–augite from Casquet et al. , 2008a ).   Single crystal ( n  = 7)  Rims around aegirine–augite ( n  = 5)  Constituent  Wt.%  Range  S.D.  Probe standard/crystal
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Comparison of the optical and crystallographic properties for the two known...
Published: 02 July 2018
Table 7. Comparison of the optical and crystallographic properties for the two known amphiboles related to the root name katophorite. Ferri-fluoro-katophorite Katophorite BL 11 AMNH H32734 This work Oberti et al. ( 2015 ) Colour Greenish grey Pale blue Optical
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Back-scattered electron (BSE) images of microtextures of jadeitites with me...
Published: 01 March 2012
of the amphibole-epidote-albitite zone (A5C). (d) Subrounded clinozoisites with skeletal habit in the epidote-albitite zone (A5B). (e) Omphacite in the phlogopite-albitite zone (OX). (f) Katophorite with small glaucophane inclusions of the amphibole-albitite zone (AY). Abbreviations: Ab, albite; Jd, jadeite; Qtz
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Photomicrograph of lawsonite and <span class="search-highlight">katophorite</span> (Am) in the jadeite-dominant m...
Published: 01 December 2007
F ig . 3. Photomicrograph of lawsonite and katophorite (Am) in the jadeite-dominant matrix of the Sorkhan blue jadeitite.
Journal Article
Published: 01 August 2023
American Mineralogist (2023) 108 (8): 1571–1572.
...Aaron J. Celestian Abstract This issue of New Mineral Names provides a summary of the newly described minerals donowensite, mikehowardite, bortolanite, fluorsigaiite, alumolukrahnite, ferro-ferri-katophorite, tomsquarryite, and argentotetrahedrite-(Zn). Argentotetrahedrite-(Zn) ( Sejkora et al...
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Powder X-ray diffraction data for ferri-fluoro-<span class="search-highlight">katophorite</span> crystal 762.    ...
Published: 02 July 2018
Table 4. Powder X-ray diffraction data for ferri-fluoro-katophorite crystal 762. I calc d calc h k l I calc d calc h k l I calc d calc h k l I calc d calc h k l 13.90 9.011 0 2 0 46.85 2.739 $\bar{\bf 3}$ 3 1 35.06 2.022
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Powder X-ray diffraction data for ferri-fluoro-<span class="search-highlight">katophorite</span> crystal 762.    ...
Published: 02 July 2018
Table 4. Powder X-ray diffraction data for ferri-fluoro-katophorite crystal 762. I calc d calc h k l I calc d calc h k l I calc d calc h k l I calc d calc h k l 13.90 9.011 0 2 0 46.85 2.739 $\bar{\bf 3}$ 3 1 35.06 2.022