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Showing 1-20 of 1,711 results
  1. Atomic resolution transmission electron microscopy visualisation of channel occupancy in beryl in different crystallographic directions

    The causes of colour in beryl have been a research topic for decades. For some varieties, such as emerald (green, coloured by Cr 3+ and/or V 3+ ), the...

    Carina Silke Hanser, Per Erik Vullum, ... Bodil Holst in Physics and Chemistry of Minerals
    Article Open access 05 July 2024
  2. Trace Element Composition of Beryl From the Sherlovaya Gora Deposit, Southeastern Transbaikal Region, Russia

    Abstract

    The trace element distribution (including water and halogens) has been studied for the first time using SIMS techniques, in two different...

    A. K. Gavrilchik, S. G. Skublov, E. L. Kotova in Geology of Ore Deposits
    Article 01 December 2022
  3. Avdeevite, a Na-Dominant Alkali Beryl: Determination as Valid Mineral Species and New Data

    Abstract —This paper describes the first Na-dominant member of the beryl group, named avdeevite. The sample, which became its holotype, was found in a...

    A. A. Agakhanov, D. A. Stepanenko, ... D. Yu. Pushcharovsky in Geology of Ore Deposits
    Article 01 December 2021
  4. Beryl occurrences in the granitic complex of Guerioune, Laouni, Southeastern Algeria: electron microprobe, infrared spectroscopy, and fluid inclusions data

    The Guerioune beryl is green or light green; the color is mainly due to the presence of Cr substituting Al in the beryl structure. The Cr2O3 and V2O3...

    Ahmed Hamis, Mokrane Kesraoui, ... Christian Marignac in Arabian Journal of Geosciences
    Article 22 February 2021
  5. Historiography and FTIR spectral signatures of beryl crystals from some ancient Roman sites in the Eastern Desert of Egypt

    Beryl (mostly emerald) was mined in Egypt since Antiquity, particularly the so-called “Cleopatra’s Mines” in the Eastern Desert were a major source...

    Adel A. Surour, Sayed A. M. Omar in Environmental Earth Sciences
    Article 16 November 2020
  6. Origin and geochemical characteristics of beryllium mineralization in the Zabara-Wadi El Gemal region, South Eastern Desert, Egypt

    Beryl is the commercial source of beryllium and several varieties of it are valued as a gemstone. To contribute to understanding the mechanism of...

    Gehad M. Saleh, Farrage M. Khaleal, ... El Saeed R. Lasheen in Acta Geochimica
    Article 04 May 2024
  7. The Tamir Molybdenum Event (Western Transbaikal, Russia): the First Data on the Physicochemical Formation Parameters

    Abstract

    The Tamir molybdenum occurrence is one of the promising objects of the Selenginsky ore region of Western Transbaikalia. Ore occurrence is a...

    L. B. Damdinova, A. L. Elbaev in Geology of Ore Deposits
    Article 01 December 2022
  8. The Nature of Beryl Color from the Sherlovaya Gora Deposit

    In this work, the studies of the crystal chemical characteristics and nature of the color of beryl from the Sherlovaya Gora deposit (Transbaikalia)...
    Angelina D. Mikheeva, Anatoliy G. Nikolaev, ... Alena A. Borzenko in Minerals: Structure, Properties, Methods of Investigation
    Conference paper 2020
  9. Scandium, Yttrium and Lanthanids in the Beryl of the Sherlovaya Gora Deposit

    For the first time, a comparative study of the content of iron, scandium, yttrium and lanthanide impurities was carried out using the example of 58...
    Alena A. Borzenko, Georgiy A. Yurgenson in Minerals: Structure, Properties, Methods of Investigation
    Conference paper 2020
  10. Alpine eclogite-facies modification of Li-Cs-Ta pegmatite from the Wolfsberg lithium deposit, Austria

    The Wolfsberg lithium deposit in Austria is one of the largest Li-Cs-Ta pegmatite resources in Europe. The deposit is part of the Austroalpine Unit...

    William Keyser, Axel Müller, ... Thomas Unterweissacher in Mineralium Deposita
    Article Open access 19 April 2023
  11. A preliminary study on the volcanic intrusive complex type beryllium metallogenic belt from the southeast coast of China

    Beryllium (Be) is one of the unsubstitutable key metals in strategic emerging industries and national defense industries, mainly originating from...

    Can Rao, Rucheng Wang, ... Runqiu Wu in Science China Earth Sciences
    Article 24 June 2022
  12. Beryllium (Be) [Z = 4]

    Beryl in rare-metal pegmatites can occur with other minerals that contain commodities of commercial importance, such as cesium, lithium, and...
    Joaquim Sanz, Oriol Tomasa, ... Nor Sidki-Rius in Elements and Mineral Resources
    Chapter 2022
  13. The petrogenesis of highly fractionated gem-bearing pegmatites of Malawi: evidence from mica and tourmaline chemistry and finite step trace element modelling

    Late-Pan-African granitic pegmatites in Malawi host gem mineralization (tourmaline, beryl/aquamarine/heliodor). We use major and trace element...

    Tuhin Chakraborty, Steffen H. Büttner, ... Charles F. Kankuzi in Mineralium Deposita
    Article 06 December 2023
  14. High-Temperature Beryl from Vugless Granite Pegmatites of the Suprunovskoye Deposit, Irkutsk Oblast, Russia

    Abstract—

    New data were obtained on the chemical composition of beryl from the Suprunovskoye deposit (wt %): 66.10 SiO 2 , 0.51 Na 2 O, 17.99 Al 2 O 3 , 0.37...

    E. I. Gerasimova, V. Yu. Prokof’iev, ... T. N. Kovalskaya in Geochemistry International
    Article 01 July 2019
  15. Be, Fe2+-substitution in natural beryl: an optical absorption spectroscopy study

    Collection of variously colored gem quality iron-bearing beryl from two Brazilian deposits, Lavra do Abilio (Minas Gerais) and Garimpo do Cercadinho...

    Michail N. Taran, Oleksii A. Vyshnevskyi in Physics and Chemistry of Minerals
    Article 07 June 2019
  16. Nano- and Micromorphological Evidence of Colloidal Fluid Structure in Inclusions of Aquamarine Crystals

    Using atomic force, scanning electron microscopy and electron beam lithography, it was shown that the fluid in the inclusions of the Sherlovaya Gora...
    Conference paper 2023
  17. Experience of Calculation Factor of the Structural Complexity Coefficient for Structural Challenges Describe the Regularities of Genetic Inheritance Structure Under Crystallization of Berillian Indialite

    For the first time, a quantitative assessment of the evolution of the indicator of the formation processes structural complexity of the beryl and...
    Conference paper 2023
  18. The U–Pb Age of Rare-Metal Alkali Granites at the Snezhnoe Deposit: Age Homogeneity Assessment of Ognit Granitoids (Eastern Sayan Region)

    Abstract

    The higher alkali granitoids traditionally combined into the Middle Paleozoic (Silurian–Devonian) Ognit complex are widespread in the Oka...

    D. A. Lykhin, V. V. Yarmolyuk, ... Yu. V. Plotkina in Doklady Earth Sciences
    Article 01 October 2022
  19. Chemical and spectroscopic characterization of tourmaline from the ancient Roman mines in the Eastern Desert of Egypt

    Tourmaline occurrences are found in the Eastern Desert of Egypt, particularly at the Wadi El-Gemal area, which is the locality of famous beryl mines...

    Adel A. Surour, Sayed M. A. Omar in Environmental Earth Sciences
    Article 25 January 2022
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