1-17 OF 17 RESULTS FOR

almeidaite

Results shown limited to content with bounding coordinates.
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article

Almeidaite, Pb(Mn,Y)Zn 2 (Ti,Fe 3+ ) 18 O 36 (O,OH) 2 , a new crichtonite-group mineral, from Novo Horizonte, Bahia, Brazil

Luiz A. D. Menezes Filho, Nikita V. Chukanov, Ramiza K. Rastsvetaeva, Sergey M. Aksenov, Igor V. Pekov, Mário L. S. C. Chaves, R. Peter Richards, Daniel Atencio, Paulo R. G. Brandão, Ricardo Scholz, Klaus Krambrock, Roberto L. Moreira, Frederico S. Guimarães, Antônio W. Romano, Aba C. Persiano, Luiz C. A. de Oliveira, José D. Ardisson
Published: 01 April 2015
Mineralogical Magazine (2015) 79 (2): 269–283.
DOI: https://doi.org/10.1180/minmag.2015.079.2.06
...; Luiz C. A. de Oliveira; José D. Ardisson Abstract Almeidaite (IMA 2013-020), ideally Pb(Mn,Y)Zn 2 (Ti,Fe 3+ ) 18 O 36 (O,OH) 2 , from Novo Horizonte, Bahia, Brazil, occurs in association with quartz, rutile, anatase, hematite, kaolinite, muscovite, xenotime-(Y) and bastnaesite-(La). Almeidaite forms...
FIGURES | View All (9)
PDF
Purchase
Add to Citation Manager
Image
The IR spectrum of <span class="search-highlight">almeidaite</span>.

The IR spectrum of almeidaite.

Published: 01 April 2015
F ig . 7. The IR spectrum of almeidaite.
Image
Reflectance curves of <span class="search-highlight">almeidaite</span> in the visible range.

Reflectance curves of almeidaite in the visible range.

Published: 01 April 2015
F ig . 4. Reflectance curves of almeidaite in the visible range.
Image
A crystal of <span class="search-highlight">almeidaite</span> (23 mm × 22 mm × 6 mm).

A crystal of almeidaite (23 mm × 22 mm × 6 mm).

Published: 01 April 2015
F ig . 1. A crystal of almeidaite (23 mm × 22 mm × 6 mm).
Image
Mössbauer spectra of <span class="search-highlight">almeidaite</span> obtained at room temperature (RT) and at 80...

Mössbauer spectra of almeidaite obtained at room temperature (RT) and at 80...

Published: 01 April 2015
F ig . 6. Mössbauer spectra of almeidaite obtained at room temperature (RT) and at 80 K.
Image
Ideal <span class="search-highlight">almeidaite</span> crystal (untwinned) based on the forms in Table 1 and ob...

Ideal almeidaite crystal (untwinned) based on the forms in Table 1 and ob...

Published: 01 April 2015
F ig . 2. Ideal almeidaite crystal (untwinned) based on the forms in Table 1 and observations of their relative prominence on actual crystals.
Image
Reflectance curve of <span class="search-highlight">almeidaite</span> obtained with polarized radiation in the IR...

Reflectance curve of almeidaite obtained with polarized radiation in the IR...

Published: 01 April 2015
F ig . 5. Reflectance curve of almeidaite obtained with polarized radiation in the IR range from crystal sections parallel to the c axis.
Image
Polyhedral layers in <span class="search-highlight">almeidaite</span> viewed down the c axis, for ( a ) c ≈ 0...

Polyhedral layers in almeidaite viewed down the c axis, for ( a ) c ≈ 0...

Published: 01 April 2015
F ig . 9. Polyhedral layers in almeidaite viewed down the c axis, for ( a ) c ≈ 0.06; ( b ) c ≈ 0.16; ( c ) c ≈ 0.26; ( d ) c ≈ 0.39; and ( e ) c ≈ 0.49.
Image
The arrangement of cationic sites along the three-fold axis in <span class="search-highlight">almeidaite</span>. ...

The arrangement of cationic sites along the three-fold axis in almeidaite. ...

Published: 01 April 2015
F ig . 8. The arrangement of cationic sites along the three-fold axis in almeidaite. The sites M 0– M 5 and the additional M 6 site are denoted after Armbruster and Kunz ( 1990 ).
Journal Article

Parisite-(La), ideally CaLa 2 (CO 3 ) 3 F 2 , a new mineral from Novo Horizonte, Bahia, Brazil

Luiz A. D. Menezes Filho, Mario L. S. C. Chaves, Nikita V. Chukanov, Daniel Atencio, Ricardo Scholz, Igor Pekov, Geraldo Magela da Costa, Shaunna M. Morrison, Marcelo B. Andrade, Erico T. F. Freitas, Robert T. Downs, Dmitriy I. Belakovskiy
Published: 01 February 2018
Mineralogical Magazine (2018) 82 (1): 133–144.
DOI: https://doi.org/10.1180/minmag.2017.081.028
... ) 3 F 2 , occurs in a hydrothermal vein crosscutting a metarhyolite of the Rio dos Remédios Group, at the Mula mine, Tapera village, Novo Horizonte county, Bahia, Brazil, associated with hematite, rutile, almeidaite, fluocerite-(Ce), brockite, monazite-(La), rhabdophane-(La) and bastnäsite-(La...
FIGURES | View All (7)
PDF
Purchase
Add to Citation Manager
Image
Twinned <span class="search-highlight">almeidaite</span> crystal, drawn from digital images of an actual specimen...

Twinned almeidaite crystal, drawn from digital images of an actual specimen...

Published: 01 April 2015
F ig . 3. Twinned almeidaite crystal, drawn from digital images of an actual specimen. Faces in dark grey are part of the re-entrant or concave region of the twin. Faces in light grey are pairwise co-planar. Left and right edges of the drawn region are boundaries with additional twin domains.
Journal Article

New Mineral Names,

Dmitriy I. Belakovskiy, Yulia Uvarova, Olivier C. Gagne
Published: 01 April 2016
American Mineralogist (2016) 101 (4): 1012–1019.
DOI: https://doi.org/10.2138/am-2016-NMN10149
...Dmitriy I. Belakovskiy; Yulia Uvarova; Olivier C. Gagne © 2016 Mineralogical Society of America 2016 This New Mineral Names has entries for 14 new mineral species, including almeidaite, barlowite, barrydawsonite-(Y), bluebellite, bonazziite, braccoite, chanabayaite, favreauite...
PDF
Add to Citation Manager
Journal Article

Mianningite, (☐,Pb,Ce,Na) (U 4+ ,Mn,U 6+ ) Fe 3+ 2 (Ti,Fe 3+ ) 18 O 38 , a new member of the crichtonite group from Maoniuping REE deposit, Mianning county, southwest Sichuan, China

Xiangkun Ge, Guang Fan, Guowu Li, Ganfu Shen, Zhangru Chen, Yujie Ai
Published: 01 May 2017
European Journal of Mineralogy (2017) 29 (2): 331–338.
DOI: https://doi.org/10.1127/ejm/2017/0029-2600
... (M6–M9) with low occupancies, which also exist in some species of the crichtonite group, such as U-rich senaite ( Armbruster & Kunz, 1990 ), dessauite ( Orlandi et al. , 1997 ), mapiquiroite ( Biagioni et al. , 2014 ), and almeidaite ( Menezes et al. , 2015 ). Nevertheless, assignment of Fe...
PDF
Purchase
Add to Citation Manager
Includes: Supplemental Content
Journal Article

New minerals and nomenclature modifications approved in 2013

P. A. Williams, F. Hatert, M. Pasero, S. J. Mills
Published: 01 August 2013
Mineralogical Magazine (2013) 77 (6): 2695–2709.
DOI: https://doi.org/10.1180/minmag.2013.077.6.01
..., A.W., de Oliveira, L.C.A., Ardisson, J.D., Krambrock, K., Moreira, R.L., Guimarães, F.S., Persiano, A.C. and Richards, R.P. (2013) Almeidaite, IMA 2013-020. CNMNC Newsletter No. 16, 2013, page 2705; Mineralogical Magazine , 77 , 2695–2709. IMA No. 2013-021 Minjiangite Ba[Be 2 P 2 O 8...
PDF
Purchase
Add to Citation Manager
Journal Article

New Mineral Names

Dmitriy I. Belakovskiy, Fernando Cámara, Yulia Uvarova
Published: 01 June 2020
American Mineralogist (2020) 105 (6): 972–975.
DOI: https://doi.org/10.2138/am-2020-NMN105612
.... Zincovelesite-6 N 6 S crystallized at a relatively late stage of metasomatic processes and probably has a hydrothermal origin. Ferricoronadite is one of the latest minerals in this association. Other associated minerals include As-rich fluorapatite, dolomite, Zn-bearing talc, almeidaite, hydroxycalcioroméite...
PDF
Add to Citation Manager
Journal Article

New data on ferriakasakaite-(La) and related minerals extending the compositional field of the epidote supergroup

Nikita V. Chukanov, Natalia V. Zubkova, Christof Schäfer, Dmitry A. Varlamov, vera N. Ermolaeva, Yury S. polekhovsky, Simeon Jančev, Igor V. Pekov, Dmitry Yu. Pushcharovsky
Published: 01 March 2018
European Journal of Mineralogy (2018) 30 (2): 323–332.
DOI: https://doi.org/10.1127/ejm/2018/0030-2716
... oxygen-bearing minerals (Zn-spinels, Zn- and Sb-rich members of the högbomite supergroup, nežilovite, ferricoronadite, piemontite-(Pb), almeidaite, hydroxyplumboroméite etc .) or immobilization and the absence of sulfides in the orogenic zone of the Pelagonian massif can be suggested: S 2–  + 2O 2 ↔ SO...
FIGURES | View All (6)
PDF
Purchase
Add to Citation Manager
Includes: Supplemental Content
Journal Article

New Mineral Names,

Fernando Cámara, Dmitriy I. Belakovskiy, Yulia Uvarova, Olivier C. Gagne
Published: 01 December 2017
American Mineralogist (2017) 102 (12): 2525–2531.
DOI: https://doi.org/10.2138/am-2017-NMN1021230
... spinel, having as minor components franklinite (relics of an earlier paragenesis), gahnite, quartz, roméite, almeidaite, and zincohögbomite analog with Fe 3+ > Al. Ferricoronadite forms aggregates of anhedral grains up to 0.6 mm across. The mineral is black, opaque with a brownish black streak...
PDF
Add to Citation Manager