Trace element zoning of colorless beryl from spodumene pegmatites of Pashki deposit (Nuristan province, Afghanistan)
Frontiers in Earth Science,
Год журнала:
2024,
Номер
12
Опубликована: Июль 25, 2024
Trace
element
zoning
of
colorless
beryl
from
spodumene
pegmatites
Pashki
deposit
(Nuristan
province,
Afghanistan)
Язык: Английский
Formation of the Mahuaping Be–W–F deposit in South China: Evidence from beryl chemistry, wolframite and monazite U–Pb dating
Ore Geology Reviews,
Год журнала:
2025,
Номер
unknown, С. 106553 - 106553
Опубликована: Март 1, 2025
Язык: Английский
Contribution of pegmatite shells to magmatic evolution and rare metal mineralization: Insights from the Shihuiyao deposit, Inner Mongolia, Northeast China
Geoscience Frontiers,
Год журнала:
2025,
Номер
unknown, С. 102042 - 102042
Опубликована: Март 1, 2025
Язык: Английский
Micro‐Raman Spectroscopy Characterization of Emeralds Combined With LA‐ICP‐MS Analysis and Multivariate Statistical Methods
Journal of Raman Spectroscopy,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 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.
Язык: 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,
Год журнала:
2024,
Номер
unknown, С. 106278 - 106278
Опубликована: Окт. 1, 2024
Язык: Английский
Trace element composition of beryl from spodumene pegmatite deposits of the Kunar Province, Afghanistan
МИНЕРАЛОГИЯ (MINERALOGY),
Год журнала:
2024,
Номер
10(2), С. 58 - 77
Опубликована: Июль 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.
Язык: Английский
SOME MINERAL-GEOCHEMISTRY ASPECTS OF BERYLL BELOKURICHINSKII PLUTON OF GORNY ALTAY
А. И. Гусев,
O.S. Kolyvanova
International Journal of Applied and Fundamental Research (Международный журнал прикладных и фундаментальных исследований),
Год журнала:
2024,
Номер
№4 2024, С. 16 - 20
Опубликована: Янв. 1, 2024
НЕКОТОРЫЕ
МИНЕРАЛОГО-ГЕОХИМИЧЕСКИЕ
АСПЕКТЫ
БЕРИЛЛА
БЕЛОКУРИХИНСКОГО
ПЛУТОНА
ГОРНОГО
АЛТАЯГусев
А
Язык: Русский