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![Powder infrared absorption spectrum of mangani-eckermannite.]()
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![Anhedral grains of mangani-eckermannite (Meck) closely intergrown with braunite (Bnt), albite (Ab) and vittinkiite (Vtk). Polished section. Back-scattered electron image.]()
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![A 0.7 cm thick vein consisting of dark red mangani-eckermannite intergrown with black braunite, pink vittinkiite and colourless albite in a rock mainly consisting of colourless to pale salmon-reddish quartz. Holotype sample #5774/1, size: 2 × 1.5 × 1.5 cm. Photo: M. Milshina.]()
![Raman spectrum of mangani-eckermannite excited by a 532 nm laser: in the 100–1250 cm–1 region and in the 2500–4000 cm–1 region (inset in the upper right corner). The measured spectrum is shown by dots. The curve matched to the dots is a result of spectral fit as a sum of individual Voigt peaks shown below the curve.]()
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1-20 OF 23 RESULTS FOR
mangani-eckermannite
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Journal Article
Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan Available to Purchase
Journal: Mineralogical Magazine
Published: 10 August 2023
Mineralogical Magazine (2023) 87 (6): 935–942.
...Anatoly V. Kasatkin; Natalia V. Zubkova; Atali A. Agakhanov; Nikita V. Chukanov; Radek Škoda; Fabrizio Nestola; Dmitry I. Belakovskiy; Igor V. Pekov Abstract Mangani-eckermannite, ideally NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , is a new member of the amphibole supergroup found at Tanohata Mine...
FIGURES
Image
Comparative data for mangani-eckermannite, eckermannite and magnesio-arfved... Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Table 8. Comparative data for mangani-eckermannite, eckermannite and magnesio-arfvedsonite. *For the type specimen described by Oberti et al. ( 2015a )
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Powder infrared absorption spectrum of mangani-eckermannite. Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Figure 3. Powder infrared absorption spectrum of mangani-eckermannite.
Image
Powder X-ray diffraction data ( d in Å) of mangani-eckermannite. Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Table 2. Powder X-ray diffraction data ( d in Å) of mangani-eckermannite.
Image
Anhedral grains of mangani-eckermannite (Meck) closely intergrown with brau... Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Figure 2. Anhedral grains of mangani-eckermannite (Meck) closely intergrown with braunite (Bnt), albite (Ab) and vittinkiite (Vtk). Polished section. Back-scattered electron image.
Image
Chemical composition of mangani-eckermannite. *Apportioned from 19.24... Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Table 1. Chemical composition of mangani-eckermannite. *Apportioned from 19.24 wt.% MnO measured by electron microprobe analysis **For total Mn calculated as MnO. ***Calculated from 0.172 wt.% H (mean of 5 spots; range 0.170–0.174; S.D. 0.002) determined by SIMS. S.D. = Standard
Image
Site occupancies proposed for mangani-eckermannite based on the results of ... Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Table 7. Site occupancies proposed for mangani-eckermannite based on the results of the crystal structure refinement. SSF exp and SSF calc are the experimental and calculated site-scattering factors normalised to unity, respectively.
Image
A 0.7 cm thick vein consisting of dark red mangani-eckermannite intergrown ... Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Figure 1. A 0.7 cm thick vein consisting of dark red mangani-eckermannite intergrown with black braunite, pink vittinkiite and colourless albite in a rock mainly consisting of colourless to pale salmon-reddish quartz. Holotype sample #5774/1, size: 2 × 1.5 × 1.5 cm. Photo: M. Milshina.
Image
Raman spectrum of mangani-eckermannite excited by a 532 nm laser: in the 10... Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Figure 4. Raman spectrum of mangani-eckermannite excited by a 532 nm laser: in the 100–1250 cm –1 region and in the 2500–4000 cm –1 region (inset in the upper right corner). The measured spectrum is shown by dots. The curve matched to the dots is a result of spectral fit as a sum of individual
Image
Selected interatomic distances (in Å) in the crystal structure of mangani-e... Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Table 5. Selected interatomic distances (in Å) in the crystal structure of mangani-eckermannite.
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Bond-valence analysis (values given in valence units) for mangani-eckermann... Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Table 6. Bond-valence analysis (values given in valence units) for mangani-eckermannite. Bond valence parameters from Gagné and Hawthorne ( 2015 ). * * Note: Bond-valence calculations were performed taking into account the assigned site occupancies of Table 7 .
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Single-crystal X-ray diffraction data collection information and structure ... Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Table 3. Single-crystal X-ray diffraction data collection information and structure refinement parameters for mangani-eckermannite. * w = 1/[σ 2 ( F o 2 ) + (0.0371 P ) 2 + 0.4615 P ]; P = ([max of (0 or F o 2 )] + 2 F c 2 )/3
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Atom coordinates, equivalent isotropic displacement parameters (in Å 2 ) an... Available to Purchase
in Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan
> Mineralogical Magazine
Published: 10 August 2023
Table 4. Atom coordinates, equivalent isotropic displacement parameters (in Å 2 ) and site occupancy factors (s.o.f.) for mangani-eckermannite. * U iso ** The position of H atom was found from difference Fourier synthesis and O3–H distance was restrained softly to be 0.90(1) and U
Journal Article
Crystal structure of potassic-mangani-leakeite from the Wessels Mine, Kalahari Manganese Field, South Africa Available to Purchase
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 March 2017
European Journal of Mineralogy (2017) 29 (1): 143–148.
... 23 5 2016 16 6 2016 28 6 2016 amphibole “kornite” leakeite potassic-mangani-leakeite eckermannite crystal structure Fig. 1 Microscopic thin section ( ca . 0.3 mm in width) showing the typical assemblage of the holotype material of hennomartinite and “kornite...
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Includes: Supplemental Content
Journal Article
Newsletter 73 Available to Purchase
Journal: Mineralogical Magazine
Published: 01 August 2023
Mineralogical Magazine (2023) 87 (4): 639–643.
...., Förster, H.-J. and Karlsson, A. (2023) Fluorbritholite-(Nd), IMA 2023-001. CNMNC Newsletter 73; Mineralogical Magazine , 87 , https://doi.org/10.1180/mgm.2023.44 IMA No. 2023-004 Mangani-eckermannite NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 Meck Tanohata Mine, No. 3 orebody (also...
Journal Article
Oxo-mangani-leakeite from the Hoskins mine, New South Wales, Australia: occurrence and mineral description Available to Purchase
Journal: Mineralogical Magazine
Published: 01 October 2016
Mineralogical Magazine (2016) 80 (6): 1013–1021.
... with a near-stoichiometric composition. Indeed, mangano-mangani-ungarettiite has a completely reverse ordering of C cations, where both the R 3+ related to the basic ‘eckermannitic’ charge arrangement and those related to the oxo component are ordered at the M (1) and M (3) sites. As a consequence...
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Journal Article
Classification of the Amphiboles Available to Purchase
Publisher: Mineralogical Society of America
Published: 01 October 2007
Reviews in Mineralogy and Geochemistry (2007) 67 (1): 55–88.
...) specified in which order prefixes (when more than one is used) must be attached to the root-name. Their sequence is proto-parvo (magno)-fluoro (chloro)-potassic (sodic)-ferri (alumino, mangani)-ferro(mangano, magnesio). In addition, the first prefix attached to the root name does not involve a hyphen (e.g...
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Journal Article
ON THE CLASSIFICATION OF AMPHIBOLES Available to Purchase
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 February 2006
The Canadian Mineralogist (2006) 44 (1): 1–21.
... this? Yes, but only at a price; for example, riebeckite will become “ferro-ferri-glaucophane”, and arfvedsonite will become “ferro-ferri-eckermannite”, and a riebeckite–arfvedsonite granite will become.… On the other hand, uncommon amphiboles may possibly be redefined without hardship. Again, we offer two...
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Journal Article
The crystal chemistry of oxo-mangani-leakeite and mangano-mangani-ungarettiite from the Hoskins mine and their impossible solid-solution: An XRD and FTIR study Available to Purchase
Journal: Mineralogical Magazine
Published: 01 June 2017
Mineralogical Magazine (2017) 81 (3): 707–722.
...Roberta Oberti; Giancarlo Della Ventura; Massimo Boiocchi; Alberto Zanetti; Frank C. Hawthorne Abstract New chemical (EMP, SIMS) and structural data are reported for a suite of crystals of oxo-mangani-leakeite and mangano-mangani-ungarettiite from their common type locality, the Hoskins mine (New...
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Journal Article
“Named Amphiboles”: A new category of amphiboles recognized by the International Mineralogical Association (IMA) and a defined sequence order for the use of prefixes in amphibole names Available to Purchase
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 February 2005
American Mineralogist (2005) 90 (2-3): 516–517.
.... The convention of not hyphenating the prefix nearest to the root name (e.g., ferrogedrite), except when two vowels adjoin (e.g., ferro-eckermannite), or it might be unclear, is retained. The prefix order should be: The first prefix should always be any proto, magno, or parvo prefix if required; Next...
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