Formation of the Mahuaping Be–W–F deposit in South China: Evidence from beryl chemistry, wolframite and monazite U–Pb dating
Wenchang Li,
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Qinggao Yan,
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Huawen Cao
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et al.
Ore Geology Reviews,
Journal Year:
2025,
Volume and Issue:
unknown, P. 106553 - 106553
Published: March 1, 2025
Language: Английский
Contribution of pegmatite shells to magmatic evolution and rare metal mineralization: Insights from the Shihuiyao deposit, Inner Mongolia, Northeast China
Zhichao Zhang,
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Zheng Ji,
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Yusheng Zhu
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et al.
Geoscience Frontiers,
Journal Year:
2025,
Volume and Issue:
unknown, P. 102042 - 102042
Published: March 1, 2025
Language: Английский
Micro‐Raman Spectroscopy Characterization of Emeralds Combined With LA‐ICP‐MS Analysis and Multivariate Statistical Methods
Raquel Alonso‐Perez,
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Adriana Heimann Ríos,
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Daniel X. Gray
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et al.
Journal of Raman Spectroscopy,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 10, 2025
ABSTRACT
Gem‐quality
emeralds—the
green
color
variety
of
beryl
(Be
3
Al
2
Si
6
O
18
)—from
some
the
most
important
world
localities
(Australia,
Austria,
Brazil,
China,
Colombia,
Egypt,
Madagascar,
Nigeria,
Russia,
South
Africa,
and
Zambia)
were
characterized
using
micro‐Raman
spectroscopy.
There
are
three
main
characteristic
Raman
shift
regions
in
emeralds:
fingerprint
region
(150–1500
cm
−1
)
representative
Si‐O,
Be‐O,
Al‐O
bonds;
water
(3500–3900
),
nitrogen
hydrocarbons
(~2325
~2914
,
respectively).
This
study
examined
crystals
gemstones
representing
11
major
along
with
one
synthetic.
The
analysis
involved
a
systematic
crystal
orientation
effects
(parallel
perpendicular
to
c
‐axis)
peak
finding
fitting
center
full
width
half
maximum
peaks
Fourier
self‐deconvolution
Lorentz
functions,
respectively.
Peak
intensity
was
found
be
strongly
influenced
by
polarization
effects,
bands
around
1070
due
Si‐O
and/or
Be‐O
stretching,
being
affected.
Colombian
emeralds,
carbonaceous
black
shales
low
alkalis,
exhibited
dominant
type‐I
(3608
both
orientations
showed
highest
N
molecule
).
In
contrast,
Madagascar
Zambian
emeralds
had
type‐II
(3598
alkali
concentrations.
Preliminary
linear
discriminant
(LDA)
applied
spectroscopy
LA‐ICPMS
datasets
demonstrates
distinct
clustering
pattern
for
emeralds.
Furthermore,
effectively
differentiates
Pan‐African
deposits,
specifically
distinguishing
Madagascan
samples
from
ones.
Including
additional
combined
other
would
enhance
potential
as
provenance
tool.
Language: Английский
Trace element zoning of colorless beryl from spodumene pegmatites of Pashki deposit (Nuristan province, Afghanistan)
С. Г. Скублов,
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Nazifullah Hamdard,
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Mikhail Ivanov
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et al.
Frontiers in Earth Science,
Journal Year:
2024,
Volume and Issue:
12
Published: July 25, 2024
Trace
element
zoning
of
colorless
beryl
from
spodumene
pegmatites
Pashki
deposit
(Nuristan
province,
Afghanistan)
Language: Английский
Crystallographic insights and crystal fractionation simulations of alkali- and water-bearing beryl: Implications for magmatic–hydrothermal evolution and Be enrichment mechanisms
Ore Geology Reviews,
Journal Year:
2024,
Volume and Issue:
unknown, P. 106278 - 106278
Published: Oct. 1, 2024
Language: Английский
Trace element composition of beryl from spodumene pegmatite deposits of the Kunar Province, Afghanistan
МИНЕРАЛОГИЯ (MINERALOGY),
Journal Year:
2024,
Volume and Issue:
10(2), P. 58 - 77
Published: July 3, 2024
The
study
of
trace
element
composition
beryl
from
the
Chambalak
and
Digal
deposits
Darai
Pech
pegmatite
feld
Kunar
province
(Afghanistan)
using
secondary
ion
mass
spectrometry
(SIMS)
revealed
sectoriality
crystal
deposit.
inner
outer
parts
profle
are
identifed
as
pinacoid
(0001)
prism
(10
1
0)
growth
zones,
respectively.
At
boundary
these
two
simple
forms,
Cs,
Na,
Ca,
Fe,
Mg,
V
content
strongly
increases.
zone
exhibits
pyramids:
a
decrease
in
V,
Ni,
Cr
during
towards
edge
crystal.
H2O
Mg
increases
zone.
No
between
zones
is
observed
There
reason
to
consider
its
A
comparison
based
on
indicative
elements,
increase
which
corresponds
fractionation
trend
melt
(Cs,
Li,
Rb),
with
other
objects
showed
that
studied
was
moderately
fractionated
corresponding
initial
evolution
stages.
It
shown
some
elements
can
fundamentally
differ.
Language: Английский
SOME MINERAL-GEOCHEMISTRY ASPECTS OF BERYLL BELOKURICHINSKII PLUTON OF GORNY ALTAY
А. И. Гусев,
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O.S. Kolyvanova
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International Journal of Applied and Fundamental Research (Международный журнал прикладных и фундаментальных исследований),
Journal Year:
2024,
Volume and Issue:
№4 2024, P. 16 - 20
Published: Jan. 1, 2024
НЕКОТОРЫЕ
МИНЕРАЛОГО-ГЕОХИМИЧЕСКИЕ
АСПЕКТЫ
БЕРИЛЛА
БЕЛОКУРИХИНСКОГО
ПЛУТОНА
ГОРНОГО
АЛТАЯГусев
А
Language: Русский