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| | Journal (article/letter/editorial) | | 3749/canmin.50.4.1055
THE EL MUERTO “NYF” GRANITIC PEGMATITE, OAXACA, MEXICO,
AND ITS STRIKING ENRICHMENT...Montreal, Quebec H3A 2A7, Canada
Abstract
The El Muerto granitic pegmatite, of Grenville (Neoproterozoic)...(Neoproterozoic) age, part of the Oaxacan Complex in southern Mexico,
contains an exceptional development of HFSE-enriched...thorite, fergusonite-(Y),
aeschynite-(Y), yttrium-rich betafite, polycrase-(Y), uranopolycrase, niobian...earmarks of a NYF suite, but is devoid of F. El Muerto is a member of an anorogenic anorthosite – mangerite | 👁 Image
| Macdonald, R., Bagiński, B., Kartashov, P. M., Zozulya, D., Dzierżnowski, P. (2015) Hydrothermal alteration of chevkinite-group minerals. Part 2. Metasomatite from the Keivy massif, Kola Peninsula, Russia. Mineralogical Magazine, 79 (5) 1039-1059 doi:10.1180/minmag.2015.079.5.02 | Journal (article/letter/editorial) | | of titanite postdating that of rutile. Aeschynite-(Y),
aeschynite-(Ce) and REE-carbonates are accessory...activities in
the fluid were high. Formation of the aeschynite is discussed in relation to its stability in...K E Y WO R D S : chevkinite group, hydrothermal fluids, epidote supergroup, davidite, aeschynite.
Introduction...mobility of the rareearth elements (REE, including Y), actinides (Th,
U), and high-field strength elements...epidotesupergroup minerals, davidite-(La), aeschynite(Y), aeschynite-(Ce), niobian titanite, rutile and
REE-carbonates | 👁 Image
| | Journal (article/letter/editorial) | | melt that coexists with plagioclase
x and sanidine y. Upon fractionation, the melt will
progressively lose...pegmatites of the NYF affiliation, like El Muerto, in
Oaxaca, Mexico (Prol-Ledesma et al. 2012), the border...mechanisms of substitution: XCa + YLi → XNa + Y(Fe +
Mg), YLi + YAl → 2 Y(Fe + Mg) and, where Fe and Mg
have fallen...permission.
Fig. 4. Variations in the occupancy of the Y site from the core to the rim of the tourmaline crystal...REE-bearing minerals aeschynite-(Y)
[(Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6], nioboaeschynite-(Y)
[(Y,Ca,Fe,Th)(Nb,Ti)2(O | 👁 Image
| | Journal (article/letter/editorial) | | Submicrometer yttrian zircon coating and arborescent aeschynite microcrystals on
truncated bipyramidal anatase:...Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa 56127 Italy
Abstract
In this...submicrometer polycrystalline zircon and
arborescent aeschynite microcrystals on anatase with truncated bipyramidal...zircon clearly postdates anatase and predates aeschynite. The
resulting possible scenario is that F-rich...the following sequence: anatase,
zircon, and aeschynite, which reflects both elemental saturation and | 👁 Image
| Bagiński, Bogusław, Zozulya, Dmitry, MacDonald, Ray, Kartashov, Pavel M., Dzierżanowski, Piotr (2016) Low-temperature hydrothermal alteration of a rare-metal rich quartz–epidote metasomatite from the El'ozero deposit, Kola Peninsula, Russia. European Journal of Mineralogy, 28 (4) 789-810 doi:10.1127/ejm/2016/0028-2552 | Journal (article/letter/editorial) | | occurrence, chevkinite-(Ce), thorite, fergusonite-(Y) and zircon were formed in a rare-metal rich zone...gadolinite-group minerals, titanite, ilmenite, thorite and Nb,Y-oxides. The sequence of alteration events
is used...various strategic metals (rare-earth elements (REE),
Y, Nb, Ta, Be). Of great interest for their high concentrations...thorite, chevkinite-(Ce), zircon
and fergusonite-(Y) were formed. Here we report on the
later metasomatic...includes members of the gadolinite group, thorite,
Nb,Y-oxides and REE-carbonates. A specific aim is to
determine | 👁 Image
| | Book | | ................. ...... ................. 29
Mexico .................................................The treatment of historical details makes for highl y
classic localities. Uraniun, and Lhorium mineralogy...n1ake use of depleted uranizan, which is essentiall y a
very slightly radioactive waste product that re111ains...vvastewater during environmental reclamation at
a mine that has ceased production.
The following statistical...Saskatchewan, is the world's largest high-grade
uraniu1n mine. The ore from that ,nine is crushed and treated | 👁 Image
| Macdonald, Ray, Bagiński, Bogusław, Belkin, Harvey E., Stachowicz, Marcin (2019) Composition, paragenesis, and alteration of the chevkinite group of minerals. American Mineralogist, 104 (3) 348-369 doi:10.2138/am-2019-6772 | Journal (article/letter/editorial) | | where the common cations in each site
are: A, REE, Y, Ca, Sr; B, Fe2+; C, Fe2+, Fe3+, Mn, Ti, Al, Zr,
Mg;...termed perrierite. If
it is assumed that A = Ca, Sr, Y, La, Ce, Nd, Th; B = Mg, Mn,
Fe2+; C = Al, Ti, Cr...Gualda (2007):
(Ca2+ + Sr2+)A + (Ti4+ + Zr)C ↔ [(REE,Y)3+]A + (M2+,3+)C (Fig. 4).
Compositional evolution...against [La/Y]CN [fractionation of LREE from heavy rare
earth elements (HREE; Gd-Yb), with Y proxying for...result of an analytical problem. A quite exceptional
Y-dominant perrierite was described from a quartzofeldspathic | 👁 Image
| | Book | | T1
Th
Sn
Ti
TiOx
WO4
WO3
W
WOx
u
UOx
UO2
V
VOx
Yb
Y
Zn
Zr
12
15
1337
91
422
429
424
50
302
1
4
19
15...K(U02)As04*3H20,
Tet. Vitreous yellow. Fuemrole
mine, Temple Mt., Emery Co., Utah, USA. H= 2-3, Djjj=...grey, bluish-grey, yellow,
light green. Langban mine, Filipstad (near), Varmland, Sweden. H= 5, Djjj=3...5As30ig, E Rhom. Translucent blue-green. Terres mine, St.
Ausdell, Cornwall, England and/or Johanngeorgenstadt...72. Acta
Cryst. B45 (1989), 201.
Aeschynite-(Ce)
2
Aeschynite-(Ce),
(Ce,Ca,Fe,Th)(Ti,Nb)2(0,0H)6 | 👁 Image
| | Journal (article/letter/editorial) | | during crystallization and alteration of fergusonite-(Y)
from Zr-REE-Nb–rich late- to post-magmatic products...during crystallization and
alteration of fergusonite-(Y) from Zr-REE-Nb–rich late- to post-magmatic products...during crystallization and alteration of
fergusonite-(Y) from Zr-REE-Nb–rich late- to post-magmatic
products...abundant fergusonite-(Y)
mineralization. More than 90 EPMA analyses of fergusonite-(Y) from different occurrences...of the mineral. Variations
in Y/HREE ratio during growth of fergusonite-(Y) in a pegmatite are explained | 👁 Image
| | Book | | 1000° Mots inc.
Native Gold on Quartz, Paymaster mine, South
Porcupine, Ontario / Photo by Brian Boyle...Marquis imprimeur inc.
Barite on Quartz, Rock Candy mine, Grand Forks,
British Columbia / Photo by Ken Mayer...Mayer
Publisher
Pyromorphite, Society Girl mine, Moyie, British
Columbia / Photo by Ken Mayer
Mineralogical... Ontario Canada
Diopside on Grossular, Jeffrey mine, Asbestos, Quebec /
Photo by Jeffrey A. Scovil...Massachusetts 01966
U.S.A.
A
Adamite, Mapimi, Durango, Mexico
Preamble
t is with considerable pride that | introduce | 👁 Image
| Macdonald, Ray, Bagiński, Bogusław, Zozulya, Dmitry (2017) Differing responses of zircon, chevkinite-(Ce), monazite-(Ce) and fergusonite-(Y) to hydrothermal alteration: Evidence from the Keivy alkaline province, Kola Peninsula, Russia. Mineralogy and Petrology, 111 (4) 523-545 doi:10.1007/s00710-017-0506-2 | Journal (article/letter/editorial) | | chevkinite-(Ce), monazite-(Ce)
and fergusonite-(Y) to hydrothermal alteration: Evidence
from the Keivy...phosphate
[monazite-(Ce)] and an oxide [fergusonite-(Y)]. Textural evidence is taken to show that the dominant...fluids.
Expansion cracks emanating from fergusonite-(Y) are filled
with unidentified material containing...elements (LILE), Ca addition, exchange of HREE + Y for
LREE, and loss of A-site cations. More specifically...variation in A-site cations,
especially Ca, Fe and Y. Ruschel et al. (2010) reported
that during fluid-induced | 👁 Image
| | Book (volume) | | (4)Z3[Si24O72]O0 4–6X2 where N(1–5) ¼ Na, Н3О+,
K, Sr, REE, Y, Ba, Mn, Ca; M(1) ¼ Ca, Mn, REE,
Na, Sr, Fe; M(2)...generalized for the case D ¼ (Fe,Mg,Mn,
Zn)xCayNaz□1-x-y-z as follows:
ν[(Ti,Nb)–O]
(cm1) ¼ 667 + 27.02x +... Greece (6) and Cu-poor
adamite from Ojuela mine, Mexico (7)
IR spectra of acid salts (silicates, carbonates...following equations:
y ¼ 0:0667Δν1 0:0138Δν2 þ 0:914:
t ¼ 1:97 þ 1:16y 0:080Δν1 :
z ¼ 1 y t:
Violations...Locality: Tincalayu borax deposit, Salar del Hombre Muerto, Salta province, Argentina (type
locality).
Description: | 👁 Image
| | Book | | Jeffrey de Fourestier
Featuring the artwork of
Gregory Y. lvanyuk
The Canadian
Mineralogist
Special Publication...Jeffrey de Fourestier
Featuring the artwork of
Gregory Y. lvanyuk
The Canadian
Mineralogist
Special Publication...stibnite, umbozerite in
ussingite, vivianite: G. Y. lvanyuk, personal collection
Fluorapatite, ilvaite...Strunz
Unterw6ssen, Germany
Foreword
v ..: r m a n y YL'a rs of collcc1ing, one is
bo und to accum ulate...previous works, but also 10 make the results of m y
research simple and easy t o use. A s a result, I | 👁 Image
| | Book (volume) | | '.:. :,.·
~'.
', •• 1,
•,·
\:_)\_?.
'.:,y::_.;:'
• .-.,··:
..,;'.-·.:·.;:/f/t'l.._._._,,
'···••::::••...last, at www.MineralogicalRecord.com
I
IIMORIITE-(Y)
EUROPE
FRANCE
Trimouns quarry, Luzenac, Ariege....extremely rare yttrium silicate-carbonate iimoriite-(Y)
occurs at Trimouns as colorless, pink and pale brown...Springfield show ( 1995: 582).
Madawaska [Faraday] mine near Bow Lake, Hastings
County. Some of the world's...property of, the old Madawaska uranium mine
(called the Faraday mine before 1964). The mineral assemblage | 👁 Image
| | Book (edition) | | England.
Sharon Cisneros: Minerological Research Co., San Jose, California.
Andrew M. Clark: Dept. of Mineralogy...example, tritomite-(Ce) and
tritomite-(Y) are end members
[Ce+Y] in the tritomite series [AM
51:152(1966)]...nal order detectable by diffract
at least a
implies
y
generall
here
use
fied
exhibits external faces, but...where h, k and] are positive or negative, unequal
y elesymmetr
all
by
upon
acted
are
faces
al
the general...spacing, and subscripted by the relative intensit
y from 10 down to
1. The pattern is preceded by the | 👁 Image
| | Book | | enrichments that provide cash flow in the early stages of mine development, exemplified by lateritic and saprolitic...enrichments that provide cash flow in the early stages of mine development, exemplified by lateritic and saprolitic...piles during production and after operation. Other mine waste piles can be chemically reactive and interact...Thornber 1992) result directly from weathering of mine waste or through interaction with affected waters...waste from processing (gold, bauxite), abandoned mine pits, rarely backfilled, scar the landscape. Red |
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