Results 1 to 10 of about 50,073 (217)

Li-Cs-Na-Rich Beryl from Beryl-Bearing Pegmatite Dike No. 7 of the Shongui Deposit, Kola Province, Russia

open access: yesGeosciences (Switzerland), 2023
Beryl is both an accessory and a rock-forming mineral in pegmatites that contain beryl, making it a major source of Be. Beryl-bearing pegmatites of the Shongui deposit, located in the Kola province of the Northeastern Fennoscandian Shield, hold beryl ...
Lyudmila N Morozova   +2 more
exaly   +3 more sources

Proliferation, Adhesion, and Morphology of Bone-Derived Stromal Cells on Xenogenic Collagen Matrices: An In Vitro Study. [PDF]

open access: yesClin Exp Dent Res
ABSTRACT Objectives Acellular xenogeneic matrices are becoming increasingly popular for periodontal and peri‐implant soft tissue augmentation and recession coverage. This study aimed to investigate the behavior of bone‐derived stromal cells cultured onto three commercially available collagen membranes (Fibro‐Gide®, mucoderm®, and NovoMatrix®).
Brunello G   +6 more
europepmc   +2 more sources

Behavior change interventions to promote adoption of e-bike shared mobility in a rural area: evidence from a mixed-method field trial [PDF]

open access: yesFrontiers in Psychology
Encouraging a shift to sustainable travel modes is essential for achieving net zero goals. This mixed-method study investigates the adoption of e-bike shared mobility in a rural context.
Mark Wilson   +3 more
doaj   +2 more sources

Expanding Protected Areas to Safeguard Kenya's Herpetofauna Under Climate Change. [PDF]

open access: yesEcol Evol
Climate change threatens herpetofauna species by reducing suitable habitats and limiting species distributions, yet most existing protected areas provide inadequate coverage for them. Using species distribution models and systematic conservation planning, we identified priority areas requiring protected areas expansion to mitigate biodiversity loss in ...
Kimani RM   +4 more
europepmc   +2 more sources

SUPPLEMENTARY TO THE COMPOSITION OF THE URAL BERYLS AND INCLUSIONS OF SYNGENETIC MINERALS IN THEM [PDF]

open access: yesМинералогия, 2023
In addition to the data of predecessors, the chemical composition of zoned or zoned-sectorial beryl crystals from pegmatites of the Mariinsky and Kvartalny deposits of the Urals emerald mines in the Central Urals, granitic pegmatite of mine no.
V.I. Popova   +2 more
doaj   +1 more source

Spectroscopy and chromaticity characterization of yellow to light-blue iron-containing beryl

open access: yesScientific Reports, 2022
The chemical composition and influencing factors of the colour of 95 yellow to light blue iron-bearing beryl are studied through Electron Microprobe Analysis (EMPA), Energy-dispersive X-ray fluorescence (ED-XRF) spectroscopy, Fourier transform infrared ...
Yanran Shang, Ying Guo, Jun Tang
doaj   +1 more source

Mechanical and tribological behavior of Al composites containing varying beryllium aluminum silicate and constant CeO2

open access: yesSN Applied Sciences, 2021
The main aim of the present work is to see the performance of “Al–Beryl” composites processed via stir casting route with or without CeO2 on their mechanical, wear and corrosive properties for structural applications in heavy machinery and watercrafts ...
Vikas Verma   +4 more
doaj   +1 more source

Gemology, Spectroscopy, and Mineralogy Study of Aquamarines of Three Different Origins

open access: yesCrystals, 2023
New aquamarine deposits have been found around the world in recent years, and how to compare and distinguish aquamarines of different origin has become a significant problem.
Shiyuan Cui   +4 more
doaj   +1 more source

Emerald mining in Sikait: organization and distribution of emerald production in Roman Egypt [PDF]

open access: yesPolish Archaeology in the Mediterranean, 2020
The Smaragdos region, currently in the Wadi Gemal National Park (Eastern Desert, Egypt) was well known in antiquity for the emeralds that could be found there.
Joan Oller Guzmán
doaj   +1 more source

Beryl Reference Materials for In Situ Oxygen Isotope Determination

open access: yesCrystals, 2021
The mineral beryl (Be3Al2(SiO3)6) has the most abundant phase with industrial value for extracting a critical metal—beryllium. Due to multi-stage, fluid-induced growth, individual beryl grains may yield complex geochemical records, revealing variations ...
Xiaoxiao Ling   +12 more
doaj   +1 more source

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